When I use software updater and I uncheck boxes for things I don’t need, does it remember that I don’t want them on the next update?
I’m not sure what the answer is to that question. However, a sure-fire method to hold updates to a given package is to issue the following command in a terminal:
sudo apt-mark hold <package-name>
and to release the hold:
sudo apt-mark unhold <package-name>