Hello, I have the same problem as this, keyboard repeating a key randomly until another key is pressed. It happens about once per hundred of keys typed, but it depends on system load, if nothing is running it happens less often.
Apparently nobody had the answer there, but I can't imagine everybody who has this computer is just happy with that problem. I had the issue for 15 months, with Pop OS! 20.04 first then the 22.04, system is up-to-date, I've seen many kernels pass and the problem is still there.
Computer is a Dell G15 with nvidia, same as in the link.

Anybody knows what can cause that or what test I can do to troubleshoot it?
Thank you