Currently running Fedora on my ThinkPad T14 Gen 1, but the trackpad is hit or miss. It will either work splendid, or Tap-to-Click and scrolling are working 40% of the time..
I really like Fedora, but might just return to Ubuntu, as I had no issues with the trackpad there.
I'm planning to switch away from Kubuntu after using it for at least a decade on my desktop and laptop machines. The whole snap thing gets annoying. Yes, I can override it, I know, but...effort. I'm planning to just go to Debian.
how was your Ubuntu experience? Because i always felt like it could break any time: all this PPAs, need to compile lots of stuff yourself and the release model in general haven't quite worked for me.
I could recommend you to try EndeavourOS if you had somewhat similar problems. It works like a charm, since its an Arch derivative but without Manjaro's problems, which means it has rolling release model, so you always get the latest version pacages, and it has AUR support, which means you won't ever need to clone and compile anything from github, as there's 99% chance it already has its AUR, so all it takes is to type "yay -S *package name*". Not to mention the comprehensive ArchWiki.
It also has an i3 flavor. I fucking love i3.
On a laptop I had the manufacturer's linux driver worked much worse than the open source one. I would recommend checking if any other drivers are available for your trackpad.