In fairness, some games serve their purpose and are done. A simulator can run out of upgrades and new functions. Fall guys is live service but you can still play all the maps and be content you’ve had enough.

A game can end, or you can be done with something even if you haven’t completed it and that’s okay. Play to have fun, if you aren’t having fun stop playing it, life is too short to force yourself to keep going when it’s no longer rewarding.