Kernel 6.16.4 had a bug that caused packet loss. Patched in 6.16.5. Looks like Bazzite just updated (today?) from 6.16.4 to 6.17.5.
EDIT: Adding link talking about the bug
https://discussion.fedoraproject.org/t/talk-kernel-6-16-3-causes-intermittent-network-issues/163344
In KDE if you furiously move the mouse pointer in frustration, as one would when they can’t find it, the pointer will grow in size. Brighter minds than mine might be able to port that into Cinnamon.
Not sure this is the answer, but going to throw my two cents. If you try and it works let us know.
When I got back into linux a couple years ago I hopped through all of the distros you mentioned. The last one being KDE Neon. When I first found it I absolutely loved it. Decided that was going to be my main distro and started migrating all my systems which is a couple laptops, gaming desktop, and mini PC.
Over time I found that I was having minor, but consistent hardware issues. Similar to yours, freezing, and other gpu issues. It was most apparent on systems that had newer hardware. Looking at the specs for your mini PC it seems a bit older than what I have so again, not sure this applies to you, but I found my saving grace in Fedora. My issue specifically was the older kernel Neon uses not interacting well with my newer hardware and in some cases not having access to some hardware features. Fedora had a KDE spin otherwise I wouldn’t have done it. It has been my daily driver on all systems since.
TL;DR: Try Feodra KDE Spin or any distro that ships with a more up to date kernel
That’s wild, I’m on Fedora KDE and haven’t noticed any of these issues so far… Opens pretty fast, finds what I’m looking for. I didn’t see the UI bug he’s talking about with items being misaligned. I must just be lucky.