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• I have searched for related issues and found none that match my proposal.
• I have searched the current rule list and found no rules that match my proposal.
• I have read the FAQ and my problem is not listed.

My proposal is suitable for this project

• I believe my proposal would be useful to the broader TypeScript community (meaning it is not a niche proposal).

Link to the rule's documentation

https://typescript-eslint.io/rules/no-unsafe-return/

Description

I can see from previous discussions in #8674 that there was a decision not to ban returning Promise<any> in returns from non-async promises.

It would be quite nice to allow banning this type since there are situations, such as below, where code can be written with chained promises where anys can be allowed into code without any errors.

declare function hello(getName: () => Promise<string>): Promise<void>;

// Avoids error currently
await hello(() => fetch("/name/get").then((i) => i.json()));

// Gives error
await hello(async () => fetch("/name/get").then((i) => i.json()));

// Gives error
await hello(async () => {
  const response = await fetch("/name/get");
  return await response.json();
});

Fail

declare function hello(getName: () => Promise<string>): Promise<void>;

await hello(() => fetch("/name/get").then((i) => i.json()));

Pass

declare function hello(getName: () => Promise<string>): Promise<void>;

await hello(() => fetch("/name/get").then((i) => i.json() as Promise<string>));

Additional Info

No response