Not everyone that disagrees with a law is in a position to immediately change it.

That wasn’t luck - it was best practice backup strategy.

Nah. Replacing the kernel is probably planned for the next point release - it’ll just be GNU/systemd

It doesn’t break apt, Canonical just broke their version of apt just to prefer snaps now.

FTFY

Only reason it wouldn’t work is Canonical killing the .deb package. That was an unforced error. So no, still not a good idea.

Sorry, it was Solaris - you just blew it up (the minus is invalid on many Unix versions of tar)