I am on an ASUS ROG Strix G14 with the Nvidia KDE image. For some reason this issue only seems to arise with the built in keyboard on my laptop (external keyboards plugged in work fine) and (so far at least) only in Outer Worlds 2. The keyboard is recognized and functions but it will randomly not register certain inputs.
I have tried fiddling with different proton versions, different graphics settings, different combinations of things plugged in, but nothing seems to consistently fix this. Sometimes when I start the game it spontaneously will not be an issue, but that only happens like 10% of the time. It's such a random specific issue I'm having trouble searching for possible solutions. My problem is so specific I dont' necessarily expect a solution, but if anyone has ideas about what possible areas to investigate that would be helpful.