I wound up with one of those newfangled playstation controllers, and I’m surprised at how good it is. It paired nicely on Endeavour KDE, and there’s a big touchpad in the center that works to control the mouse pointer out of the box. I’m quite happy with it!
This is how I felt about my Stadia controller! Under Windows I had to buy some third party software to get it to work, and the rumble still doesn’t work there. However in Linux wired or wireless works perfectly, and the rumble works too!