Can't extend the same interface with different type parameters · Issue #11700 · microsoft/TypeScript · GitHub

This might sound like obviously correct behaviour. There's a very strong use case in the Node.js type definitions alone though, and I think type aliases show an avenue for this that could become a manageable workaround that's accessible

Types error on typescript 4.7.2 : Interface 'DateTimeFormat' incorrectly extends interface 'Omit

Performance Issues with VScode and Typescript · Issue #73470 · microsoft/vscode · GitHub

Generics extending unions cannot be narrowed · Issue #13995 · microsoft/ TypeScript · GitHub

Generics extending unions cannot be narrowed · Issue #13995 · microsoft/ TypeScript · GitHub

Unable to extend window in TS 3.6 · Issue #33128 · microsoft/TypeScript · GitHub

Generics extending unions cannot be narrowed · Issue #13995 · microsoft/ TypeScript · GitHub

Make overload resolution work correctly with string literal types · Issue #10523 · microsoft/TypeScript · GitHub

instanceof is broken when class extends Error type · Issue #13965 · microsoft/TypeScript · GitHub

Generics extending unions cannot be narrowed · Issue #13995 · microsoft/ TypeScript · GitHub

Generics extending unions cannot be narrowed · Issue #13995 · microsoft/ TypeScript · GitHub