I almost always use my phone, but that's only due to chronic back pain that makes sitting at my PC for longer than 30 minutes absolute torture. Whenever I'm well enough, I prefer to use my PC. I just like seeing everything on a bigger screen, it really helps me see the little details that I sort of forget about on my phone and it's just satisfying to get to see them every once in a while as a reminder of how neat everything looks even when on a bigger screen. Like I dress up my wolves and they'll look just fine on my phone, but then I get to see them on my PC and they look so much better and I get to appreciate that the specific apparel items I chose for them work even better when I can see them better. It's quite nice and rewarding.
I don't often get to play on my laptop so phone! The mobile interface is pretty good! And if I do use my laptop, I have to play half screens cause the full screen has too much... Everything for my brain xD
On my iPad! Mobile hurts my joints a lot less than my laptop (tapping on the screen vs typing on keys) so if I want to play for any length of time with the minimal amount of pain, it’s what I have to do.