diff --git a/packages/discord.js/typings/index.d.ts b/packages/discord.js/typings/index.d.ts
index c522050619fd..df77541a43a1 100644
--- a/packages/discord.js/typings/index.d.ts
+++ b/packages/discord.js/typings/index.d.ts
@@ -2186,7 +2186,7 @@ export class Message<InGuild extends boolean = boolean> extends Base {
   public removeAttachments(): Promise<Message<InGuild>>;
   public reply(options: string | MessagePayload | MessageReplyOptions): Promise<Message<InGuild>>;
   public resolveComponent(customId: string): MessageActionRowComponent | null;
-  public startThread(options: StartThreadOptions): Promise<AnyThreadChannel>;
+  public startThread(options: StartThreadOptions): Promise<PublicThreadChannel<false>>;
   public suppressEmbeds(suppress?: boolean): Promise<Message<InGuild>>;
   public toJSON(): unknown;
   public toString(): string;
@@ -3249,7 +3249,9 @@ export class TextChannel extends BaseGuildTextChannel {
   public type: ChannelType.GuildText;
 }
 
-export type AnyThreadChannel<Forum extends boolean = boolean> = PublicThreadChannel<Forum> | PrivateThreadChannel;
+export type ForumThreadChannel = PublicThreadChannel<true>;
+export type TextThreadChannel = PublicThreadChannel<false> | PrivateThreadChannel;
+export type AnyThreadChannel = TextThreadChannel | ForumThreadChannel;
 
 export interface PublicThreadChannel<Forum extends boolean = boolean> extends ThreadChannel<Forum> {
   type: ChannelType.PublicThread | ChannelType.AnnouncementThread;
@@ -3298,9 +3300,9 @@ export class ThreadChannel<ThreadOnly extends boolean = boolean> extends BaseCha
   public type: ThreadChannelType;
   public get unarchivable(): boolean;
   public delete(reason?: string): Promise<this>;
-  public edit(options: ThreadEditOptions): Promise<AnyThreadChannel>;
-  public join(): Promise<AnyThreadChannel>;
-  public leave(): Promise<AnyThreadChannel>;
+  public edit(options: ThreadEditOptions): Promise<this>;
+  public join(): Promise<this>;
+  public leave(): Promise<this>;
   public permissionsFor(memberOrRole: GuildMember | Role, checkAdmin?: boolean): Readonly<PermissionsBitField>;
   public permissionsFor(
     memberOrRole: GuildMemberResolvable | RoleResolvable,
@@ -3308,18 +3310,15 @@ export class ThreadChannel<ThreadOnly extends boolean = boolean> extends BaseCha
   ): Readonly<PermissionsBitField> | null;
   public fetchOwner(options?: BaseFetchOptions): Promise<ThreadMember | null>;
   public fetchStarterMessage(options?: BaseFetchOptions): Promise<Message<true> | null>;
-  public setArchived(archived?: boolean, reason?: string): Promise<AnyThreadChannel>;
-  public setAutoArchiveDuration(
-    autoArchiveDuration: ThreadAutoArchiveDuration,
-    reason?: string,
-  ): Promise<AnyThreadChannel>;
-  public setInvitable(invitable?: boolean, reason?: string): Promise<AnyThreadChannel>;
-  public setLocked(locked?: boolean, reason?: string): Promise<AnyThreadChannel>;
-  public setName(name: string, reason?: string): Promise<AnyThreadChannel>;
+  public setArchived(archived?: boolean, reason?: string): Promise<this>;
+  public setAutoArchiveDuration(autoArchiveDuration: ThreadAutoArchiveDuration, reason?: string): Promise<this>;
+  public setInvitable(invitable?: boolean, reason?: string): Promise<this>;
+  public setLocked(locked?: boolean, reason?: string): Promise<this>;
+  public setName(name: string, reason?: string): Promise<this>;
   // The following 3 methods can only be run on forum threads.
-  public setAppliedTags(appliedTags: readonly Snowflake[], reason?: string): Promise<ThreadChannel<true>>;
-  public pin(reason?: string): Promise<ThreadChannel<true>>;
-  public unpin(reason?: string): Promise<ThreadChannel<true>>;
+  public setAppliedTags(appliedTags: readonly Snowflake[], reason?: string): Promise<If<ThreadOnly, this, never>>;
+  public pin(reason?: string): Promise<If<ThreadOnly, this, never>>;
+  public unpin(reason?: string): Promise<If<ThreadOnly, this, never>>;
   public toString(): ChannelMention;
 }
 
@@ -4568,7 +4567,7 @@ export class StageInstanceManager extends CachedManager<Snowflake, StageInstance
 
 export class ThreadManager<ThreadOnly extends boolean = boolean> extends CachedManager<
   Snowflake,
-  ThreadChannel<ThreadOnly>,
+  If<ThreadOnly, ForumThreadChannel, TextThreadChannel>,
   ThreadChannelResolvable
 > {
   protected constructor(
@@ -4576,7 +4575,10 @@ export class ThreadManager<ThreadOnly extends boolean = boolean> extends CachedM
     iterable?: Iterable<RawThreadChannelData>,
   );
   public channel: If<ThreadOnly, ForumChannel | MediaChannel, TextChannel | NewsChannel>;
-  public fetch(options: ThreadChannelResolvable, cacheOptions?: BaseFetchOptions): Promise<AnyThreadChannel | null>;
+  public fetch(
+    options: ThreadChannelResolvable,
+    cacheOptions?: BaseFetchOptions,
+  ): Promise<If<ThreadOnly, ForumThreadChannel, TextThreadChannel> | null>;
   public fetch(
     options: FetchThreadsOptions & { archived: FetchArchivedThreadOptions },
     cacheOptions?: { cache?: boolean },
@@ -4587,11 +4589,13 @@ export class ThreadManager<ThreadOnly extends boolean = boolean> extends CachedM
 }
 
 export class GuildTextThreadManager<AllowedThreadType> extends ThreadManager<false> {
-  public create(options: GuildTextThreadCreateOptions<AllowedThreadType>): Promise<ThreadChannel>;
+  public create(
+    options: GuildTextThreadCreateOptions<AllowedThreadType>,
+  ): Promise<AllowedThreadType extends ChannelType.PrivateThread ? PrivateThreadChannel : PublicThreadChannel<false>>;
 }
 
 export class GuildForumThreadManager extends ThreadManager<true> {
-  public create(options: GuildForumThreadCreateOptions): Promise<ThreadChannel>;
+  public create(options: GuildForumThreadCreateOptions): Promise<ForumThreadChannel>;
 }
 
 export class ThreadMemberManager extends CachedManager<Snowflake, ThreadMember, ThreadMemberResolvable> {
@@ -6792,7 +6796,8 @@ export type Channel =
   | NewsChannel
   | StageChannel
   | TextChannel
-  | AnyThreadChannel
+  | PublicThreadChannel
+  | PrivateThreadChannel
   | VoiceChannel
   | ForumChannel
   | MediaChannel;
@@ -6822,7 +6827,7 @@ export type TextChannelResolvable = Snowflake | TextChannel;
 
 export type TextBasedChannelResolvable = Snowflake | TextBasedChannel;
 
-export type ThreadChannelResolvable = AnyThreadChannel | Snowflake;
+export type ThreadChannelResolvable = Snowflake | ThreadChannel;
 
 export type ThreadChannelType = ChannelType.AnnouncementThread | ChannelType.PublicThread | ChannelType.PrivateThread;
 
diff --git a/packages/discord.js/typings/index.test-d.ts b/packages/discord.js/typings/index.test-d.ts
index f2db5f9a6f58..2665cf028457 100644
--- a/packages/discord.js/typings/index.test-d.ts
+++ b/packages/discord.js/typings/index.test-d.ts
@@ -230,6 +230,10 @@ const client: Client = new Client({
       maxSize: 200,
       keepOverLimit: member => member.id === client.user?.id,
     },
+    ThreadManager: {
+      maxSize: 200,
+      keepOverLimit: value => !value.archived,
+    },
   }),
 });