I have to reread this later but i already understood most of it, just making sure i understand the details in english.
Well I uninstalled and deleeted and from my understanding the C: (not sure what to call it right now), should have more GB freed right now, sometimes it just moves around a bit but I tried to put steam and most Itch.io things on D:
Please tell me if you normally shouldn't share certain infos but I think I still know what's safe to mention.
A bit paranoid from a virus thing a few years ago and another time getting an account stolen for Origin.