I feel like my phone apps update constantly. In general, that’s a good thing, I assume. I figure they’re fixing bugs or whatever. However, I don’t run into issues very often, nowhere near the rate of updates, and nothing seems to change after the update.
Compare that to Steam games which update really infrequently and the changes are usually much more obvious.
The standard answer is “security”…and that may be true in some cases.
But a lot of it is just job justification. Some beleaguered coder somewhere has to do a thing because their manager has to do a thing because their director has to do a thing and so on. Box checking exercises.
Also the app is probably built on a mountain of dependencies all of which have updates and security patches and bullshit. Delaying those updates for too long makes finally making a real update a nightmare, so you occasionally release updates just to keep up.