Edit: Re-read your question, you are talking about games in general. A Switch might be a good buy, straightforward and you can usually find people willing to play in person or online for the more popular games. The games are rarely on sale though. Highly recommend a pro controller if you go this route.

For PC, there’s basically never kernel level anti-cheat, only a few frankly not great games go that route.

As far as expensive goes, there’s a ton of great PC games you can get for less than $5 during steam sale. The initial buy-in is more for a maybe $1500 PC, but you will make that up after a few dozen games. If you know a PC gaming enthusiast, imply you would play with them if you had a PC and they might sell you an old rig for dirt cheap. I’ve sold a few that way for like $100.

Set-up is easy as steam is the only program you need and controllers are plug-and-play. If you are willing to risk a little work, I found Linux Mint as an OS really easy to install and use, and then it will be future-proof (unlike windows) as well as free. You may have to troubleshoot something weird, but their forums are super helpful.

I stopped using the FB marketplace for the opposite reason after briefly suffering through selling my stuff before a move. I would post “$20 couch, barely used, pickup only” and get absolutely flooded with “Can you do free? Also drop it off at my house I don’t have a car.”