Run Windows 11 on Raspberry Pi 5 with Botspot Virtual Machine ["don’t expect to be playing triple A games here. Older games (like 10-15 years ago) and web games should work ok."]
If anything, it would be more interesting to run a full x86 emulator to install Windows 98 / Windows XP to run older games. There are games that work better on native Windows 98 than via compatibility mode on W10.
Mini PCs with a n100 or used office PCs are probably not that much more expensive and a much better alternative, if your goal is to run windows on them and you don't already have the Raspberry Pi lying around.