Funny enough, I was trained off of that not by software companies, but by the open-source community.

Too many instances of installed Linux distros breaking because some foo relied on some bar that the distro declared should work fine but must have slipped through the testing cracks somehow. Or I'd gone off-book on some custom project or other because it relied on library versions that weren't in the distro, then I forgot I did that and updating the distro libs broke my project.

I basically never run the apt updates these days.