Close to never. Even though I keep most games
Enjoying more a full replay on rare gems from time to time. (or when they are updated and I missed several updates, I tend to full replay)
But never going straight to gallery
I don't think I ever have, honestly. I only find myself using the gallery if the game seems really unfun or lackluster and I want to gauge whether it is even worth continuing.
I sometimes will go back just to watch a scene I may have accidentally skipped or really enjoyed. I prefer in game repeatable scenes, but the dialogue has to make sense (needs dialogue variation from the original scene)