Once you know your way around APT and dpkg, you can work through any issue you might have during an upgrade on other Debian-based distros, too. The copy of busybox that Debian-based distros package and ship even includes dpkg, so you can repair even a broken libc.

Most end user issues with upgrade breakage on Debian downstreams like Ubuntu and Pop!_OS wouldn't be serious problems for experienced Debian users.