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

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

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

Typescript intellisense cannot infer generic type of conditional types based on condition - Stack Overflow

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

Allow type parameters in base class expressions · Issue #26542 · microsoft/ TypeScript · GitHub

TS2448 used before its declaration error for recursive function · Issue #22975 · microsoft/TypeScript · GitHub

Mailman 3 - Python-announce-list - python.org

Extracting big typescript interface · Issue #50924 · microsoft/TypeScript · GitHub

Generic Extended Types not inferring Correctly · Issue #48741 · microsoft/ TypeScript · GitHub

Expression produces a union type that is too complex to represent · Issue #53234 · microsoft/TypeScript · GitHub