Since you’re not computer savvy, I really think you should watch some YouTube videos on how to dual boot linux with windows. That way you can keep windows without having to reinstall it if you ever wanna go back.
I think subscription would go against gog and its DRM policy (how would they enforce a subscription period without DRM), specially because gog is like the last place where we can have something that resembles owning a game nowadays.
This made me so happy, you wouldn’t imagine.
Baldur’s Gate 3, I probably would be praising The Absolute.