How are folks using the Pinephone (sim swapping?)

[deedend]

I was just wondering how people who are experimenting with the Pinephone, while also needing a more functional device for day-to-day use, are going about it.  Are you swapping the sim in to the Pinephone when you want to try things, and then putting the sim back into your Android (or other) phone after that?  I definitely want to adopt the Pinephone, but I think I'm going to need to retain a more conventional device for day-to-day use, given the (understandable) lack of maturity in the operating systems available for the Pinephone.  Since my current phone is in need of a refresh, I'm trying to decide which way to go in terms of purchasing a new Android phone together with a Pinephone for experimentation.  Any replies greatly appreciated.

In my case, I have a second SIM that I used to use as a "secondary number" on my old Redmi Note 3. After I bought the Pinephone, the Redmi Note 3 became my flight computer and the Pinephone now has that sim. It stays all the time at home, and most of the time switched off, though.