Traditionally on Ubuntu-based systems, those packages get installed as dependency of a meta package that pulls the entire desktop experience, for instance on Ubuntu this is ubuntu-desktop (the default GNOME experience), kubuntu-desktop (the KDE Plasma experience) and so on. I believe this won’t be much different for Mint.
The consequence of uninstalling such package is removal of the meta package. You can totally do that, but then the dependencies (so the cinnamon desktop with everything that makes it Linux Mint) are due for autoremoval of no longer needed packages (so apt autoremove would remove it all) unless they’re marked as explicitly installed and needed by you. Unless they’re “optional” dependencies. It’s hard to tell precisely what will happen without access to actual Linux Mint, but in theory you can just cherry pick whatever you want from that big chunky meta package, or remove it all and only reinstall stuff that interests you.
I personally wouldn’t bother and just set my default apps to my preference and if the app menu is too crowded I’d hide them using something like Alacarte (old school GNOME menu editor). That way you know that full system upgrades wont cause any problems, and you effectively replace apps as you desire.
And it’s true that for lightweight system with only what I need, something like Debian or Arch would be much better. My experience is that usually modifying easy-to-use distribution is (while perfectly possible) more effort than building one from the ground up.