If you are comfortable with games that are not technically classified as freeware yet, but functionally, they probably should be… then emulation of older consoles is a great way to go too. While they are certainly not “legal”, I don’t think anyone playing them has ever gotten in trouble. Only the people that try to make money off of it find that the console companies are motivated enough to shut them down. Otherwise, it doesn’t feel super risky to just play stuff. Just stick with games that are impossible to pay for if you want to be completely safe. There was a ton of good games on 16 and 32 bit consoles that you literally couldn’t pay for if you tried. And even as new as gamecube is getting pretty hard to possibly pay money for.

Newer stuff, I only feel ok emulating what I actually own. But as time goes on, newer and newer stuff becomes the new old stuff. A pretty wide variety of console emulators for android are in a good place now.

I do recommend a controller though if you go this route. Ideally one of the ones that also holds your phone for you. Either by making it into a switch/steamdeck kind of shape, or the ones that hold the phone above an xbox style controller. Both are good.