Bazzite Installation - keyboard behaviour

I have two questions. first, I just installed Bazzite (my first experience with linux), and right away my keyboard is experiencing odd behavior. for some reason, some symbols especially the “.” randomly generate 1-4 repeats with a single key press, some other keys do it as well.. I have looked over the feeds and posts and didn’t see anything related to this issue. Does anyone have experience with this and have some helpful advice to fix this? I have an EVGA Z15 mechanical keyboard.

The second question, I tripped over a youtube short of this guy that was showing off his Bazzite Plasma desktop which was fantastic. But video contained no links or details to youtuber or anything. His desktop was a Mac OS look, central/centered dock of icons, icons were crystal clear round cornered tiles, they rose and enlarged slightly as mouse passed over them. windows and pop-ups were basically clear jelly, same round corners, and moving it made amazing wiggle, just like it was clear soft jelly.. the best part, when exit, the window/tile/pop-up, immediately “melted” and turned into water drops that fell down the screen. coolest thing I’ve ever seen. I need this desktop! Can anyone help me find it?