As Microsoft improved windows subsystem for linux to version 2 there should be some questions related to version. the new tag kind of wsl2 could be useful.
No. Not unless version 2 is somehow completely different and someone can be an expert in WSL2 and not in WSL. The version can be mentioned in the body, that is helpful, but having a different tag for every version of a tool that comes out will just complicate things.
So I'd say we really don't need separate tags for separate versions of WSL.