Ah, lack of space in /boot, the "bye-bye regular user" issue that was finally solved for apt upgrade some time in 201x, but apparently nobody bothered to ensure

Ah, lack of space in /boot, the "bye-bye regular user" issue that was finally solved for apt upgrade some time in 201x, but apparently nobody bothered to ensure it does not happen in dist-upgrade. The year of Linux Desktop is just one decade away now.