With old hardware, beggars can’t be choosers. I get the appeal of the nouveau driver, but if your goal is to save a machine from the landfill, it’s probably the better compromise to use the proprietary driver and keep it actually competitive for as long as possible. Those 900/1000 series cards are still plenty powerful today, even if they can’t quite do AAA gaming anymore.

Bazzite. Every other recommendation is wrong.

Bazzite is “immutable”. What that basically means is that you won’t be able to break it even if you try. And if it does break somehow (for example, because of a bad update), you can fix it by doing a rollback, which is literally a one-line command: sudo rpm-ostree rollback

Sure, there are other immutable distros out there, but Bazzite is probably the most popular right now, and it ships with Nvidia drivers so it’s ready to go for 99% of people with no changes necessary.