Dear Debian users, when I apt upgrade my system, I often (one every three, more or less) find myself brutally logged out of the window system, with systemd services painfully restarting (or failing to restart). The only way I can recover is usually to reboot. I've tried to manually stop, kill the leftover processes and restart the services, one after the other, but it's very long and does not always work. I have observed this situation for a few years (maybe two or three, maybe more, I'm slow to bore).
Am I the only one? Is there a way to upgrade the system without rebooting as it used to be a few years ago? I remember updating libc.so without rebooting -- only the kernel needed reboot, and the window system, if specific files changed. Thanks, best, Loïc