One example is that if you have a node modules folder on Windows and you try to delete it from WSL it can take 10 plus minutes whereas if you deleted it directly in Windows it would have just taken a few seconds

Also if you try running Next js from files on Windows from WSL it takes minutes for each page to compile to the point that any local development is impossible so you would have to either run the Next JS server on Windows or move the files to WSL

Anything with node_modules takes ages on my Windows machine, whether it is through WSL, Docker or direct, largely in part due to corporate filters, checks, anti-virus and malware protectors and endpoint control.