[torginus]

WSL2 operates through a file-level translation layer, not unlike NFS in Linux, which can be a huge performance problem for programs that manipulate lots of tiny files, like git or npm.

[NoGravitas]

Programs that manipulate lots of tiny files are a performance nightmare on Windows even leaving aside the issue of WSL2.

[torginus]

git and npm install are somewhat slower on vanilla Windows, true, but on WSL2 they're downright unusable