Xbox controllers can be a bit unreliable on Linux in my experience. I’ve got an 8BitDo Ultimate 2C wireless that I quite like. They are way cheaper than an Xbox controller, have hall effect joysticks, and low measured latency.

That kerning issue is so distinctive that I knew where the document was from from the preview snapshot which didn’t show the ISTA header. It is actually funny how horrible their Pdfs on their website are and how nobody cares to fix it.