I had a two phone lifestyle as well for different reasons: I needed car play but don't like iOS, and also needed to know Android and iOS quite well for my job.

One iPhone that was wifi only, had my entire music library local, used for car play and a few exclusive apps.

One android with a sim that had my communication apps, social media, and some custom tinkering stuff that doesn't exist on iOS.

I did this for about two years. The main takeaways: -I 100% could have just had the iPhone with a sim for communication apps and been fine. The social media was just annoying enough to swap to that I never felt that draw and barely used it on 2phones. -even though I despise how little customization iOS lets you do, without social media or game apps, the only actual pain point with it was the nightmare of managing notifications/alert/vibration/screen wake settings* -god it made me miss small phones so much. The android was a pixel 4a, the last real phone with real hardware that released at the actual ideal size for my hands(that has an unlocked bootloader, I really can't do the Samsung hellOS experience again).

Now Im on a pixel 8 only, with Glider for this site and no other social media or games. It's fine. Phones too big, car doesn't have AAuto, and Google is trying to rot the foundation of android, but for now it's fine and better than the two phone experience because it's less juggling.