The household I've just switched from, Dani is a personal trainer doing the athletic aspiration and attending Uni at the same time, so they are a very busy Sim obviously. But they are constantly on their phone while they are working out. They keep stopping jogging and exercising to use the phone. Or they tap on the phone for the whole run. I mean, is it supposed to be that excessive or is it a bug when it kind of takes over a Sim. This Sim has a lot of friends and has the Incredibly Friendly trait, so I don't know if that's a factor. Even while fitting in a few minutes with the cat, playing with the cat wand. (My own cat has explained to me that this is highly inappropriate lol). They keep switching focus from the cat back to their phone.
It's as if some Sims have the Fame Quirk, Phone Fanatic.
So I'm moving on to a new household, Rory and she will be Dani's new girlfriend. I'm going to keep an eye on this issue while Dani is unplayed and also see if Rory is as bad with less popularity and still needing to go jogging a lot as a soldier.
I had noticed it has been excessive since last year but I'm not sure if it should be affecting some Sims so much.
I set phones to silent but I think it would help if we had an option to turn off phones like IRL. It would also help with the excessive calls and texts that I've reported on that thread which are also much worse now since adding Growing Together.
Edit: testing on the second Sim and she's texting while jogging and while practicing marching for her career plus over other daily activities too. It's still just as excessive. It's not just an idle action anymore, it's been done over other actions too. So whether or not it's a bug, it at least needs tuning IMO.