My router has a pretty descent firewall so i feel like it should be safe? Maybe. Obviously I won’t be signing into any online accounts or anything like that on the XP machine. Is this a bad ideas? Obviously using Windows in general is a bad idea but I’m sort of limited by the hardware here.
Maybe SteamOS wouldn’t work, but maybe something like Debian or Linux Mint. Especially Debian is designed with a lot of backwards compatibility, even though it is very slow at adopting new updates for software (that are not security relevant).
Debian is dropping support for i386 sadly.