I have been using the release candidates for Ubuntu 22.04 for a few weeks on my XPS 13. Last night, after the last update took place, my keyboard, mouse, touchpad, and touch screen all froze. What I learned is that this freeze comes after the Dell docking station finally connects. If I disconnect the docking station, all is well, but I obviously cannot use an external monitor, keyboard, or other USB devices that are usually attached.