Do you ever hunt around Facebook Marketplace? When electronics drop in value enough, often times, people will just give them away. I have. It's (sometimes) less hassle than trying to haggle with people over a few dollars for severely outdated hardware, and my goal at that point is to get it into someone's hands who will use it rather than have the stuff go to a landfill. Even a very outdated PC will still play tons and tons of great games for cheap or free. They frequently won't be the latest and greatest, but there's less and less correlation these days with high game quality and high system requirements.

and as far as I’m aware, I would probably be unable to buy a PC or console ever again.

I don't have any suggestions but I am so, so sorry and I really hope things turn around for you for the better.

Due to Long Covid I can only lay in bed and most games are too intense for me. So I actually do watch let's plays.

I really like Welonz. She has a really nice mix of indies and big titles, regularly tries out a great variety of games. She is very thorough and while she might not find all the secrets she will go out of her way to show alternate endings and stuff. And she has an interesting voice, so rumor has it that she is actually a ten year old boy.

If emulation is an option you could play some classics on your phone if it helps.

Sorry for your situation. Hope the future looks better.

I would probably be unable to buy a PC or console ever again.

Shit dude, that's rough
If I may ask, what happened?

Otherwise, no nearby gaming cafés? They're usually reasonably priced

If it's only for one game, you could probably try cloud gaming. I gave a friend of mine who wanted to play Death Stranding 2 but has no PS5 access to remote play, and it seems to be working OK. Some of the services work on phones or TVs.

Also, my condolences on selling your pc. I hope it helped your situation a bit.

You could try to get a used Steam Deck. That will let you play most current AAA games and plenty of indie or older titles for not a lot of money. Apart from that, I wish you all the best and I hope things get better for you.

Reading, enjoying vacation, ...

Other hobbies lke hiking, biking, etc. but if your only concern is cost, why not get an old computer for super cheap, put Linux on it, and play games thay don't need high end specs?

I'm sitting in a restaurant waiting for my food

You could get monthly subscriptions for services like Geforce Now or Xbox Cloud Gaming. With a decent internet connection and a controller, pretty much any device that can display video becomes a gaming device. Obviously this may work out to be more expensive in the long run and these services have some weird terms of service so a decent research before subscribing is required but if you need to game for a month with minimal upfront investment they are pretty good.

Let's plays can be okay for new games, but I'd look into emulating something on your phone. If you crave the pc experience (which I totally get), you can probably get an old laptop for very cheap, slap linux on it and have fun.

Used market is great, and I prefer true console hardware anyway when emulators are not optimized.

I'm sorry to hear that. Obviously we don't know your situation but I just want to say that gaming doesn't have to be expensive so hopefully you're back to it sooner rather than later.