Can you currently install flatpak apps through commandline? If yes, check your software sources from Discover settings page.

How did you install Arch and Plasma? My installs always come with both flatpak and Flathub enabled by default.

Depending on the distribution you use, you might need to set up Flathub.

This is one place where I love MacBooks. Most other touchpads are loud and can only be clicked near the bottom border.

I highly suspect the culprit is the touchpad. I have a pretty modern ASUS Zenbook laptop and its touchpad has horrible palm rejection on Linux, but works just fine on Windows. I often move the cursor to a point where a click wouldn’t do anything, like the bottom panel in KDE Plasma, or just outright disable it for that session. My guess would be that ASUS is sending nonstandard signals to the OS which is then misinterpreted by poor libinput. My next laptop will definitely be a Framework or Tuxedo, just because of this annoyance.

I propose asking if the person is primarily using a laptop or a desktop computer. For example: I do use disk encryption and Secure Boot on my laptop, but not on my desktop.

Max Payne 2

KDE Plasma got a once-a-year notification that asks for donations a few months ago, which shows up in December.

I have tried Bazzite before and understand its appeal. I am an ex-Arch user so I prefer the system to be as minimal as possible. Fedora fits my requirements just right and Bazzite does not seem to bring anything to the table that I miss from Fedora.

Fedora Kinoite. I like KDE, atomic distros and the fact that Fedora is the only (at least that I know of) distro that has proper SELinux implementation.

I also play games on this system, so having newer kernel and Mesa versions help.

NewPipe

UFW, by default, blocks all incoming requests. This means that SSH (port 22) is blocked already. Then, if you need to, whitelist (ALLOW) ports that you want to expose to the network. For example, I have ports 1714-1764 whitelisted for KDE Connect and everything else is blocked.

I suspect you have installed either Lutris or Steam through flatpak.

Try installing both using the same method or install MangoHud both as a flatpak and a system package.

Also, I recommend enabling MangoHud with ‘MANGOHUD=1 %command%’ instead.