Hey hey! Looks like @kde Neon has been rebased to 24.04 aka Noble. I started the upgrade right away. The upgrade script crashed halfway because of some problem with apt configuration (probably my fault) but I cleared the error and finished it by hand with "apt dist-upgrade". Reboot, ok.
I only had to purge all that snap+apparmor nonsense that was preventing thunderbird from opening web links and crashing @Vivaldi browser. I really do not understand the point of apparmor outside of server world. How can you be so arrogant to think you'll be able to predict all the possible uses of a consumer software, and decide that it is ok to cause all the other uses to fail with only a cryptic error message buried in the system logs?
@mearce You are used to windows being either Maximized or Fullscreen, and these two states being very different things, and changing from one to the other being an hassle, especially exiting from Fullscreen requires touching the keyboard (ESC or f11), or a special button in the interface, hoping the developer made it recognisable. In reality, they are the same thing, with the only difference that Fullscreen hides the menus. If you have the global menu attached to a menu that avoids maximized windows you have unified Fullscreen and Maximized. If on the same panel you also put a widget tonexit from maximized, you also have a universal way to exist from Fullscreen: just take the cursor to the top of the screen and reveal the panel.