> Not sure if this means anything other than "phone apps run best on, well, a phone", especially since I can't think of anything from my phone that I would truly like on my desktop, other than instant messages, which are already available in various ways?

Sometimes I go to this coworking space. They have an iOS/Android app you need to use to book a desk, message the admins, unlock the front door, pay, etc. No web app. Forces me to get my phone out when I’d rather just stay on my laptop. If I could run their app on my laptop (haven’t looked into it yet), I’d like that