@Sxan I tried daily driving a Linux phone for most of last year. I’m also in the USA and I was on AT&T w/VoLTE.
My experience with Librem 5 was that the hardware is too low spec for me. The RAM pressure with even a handful of apps running is really high. Swap file improves the situation somewhat, but it has downsides.
I also daily drove the Oneplus 6t for a while. That was better, but was still having lots of random call audio issues. (I don’t know if it’s fixed yet.)
One thing to watch out for: I found myself in an emergency situation where I needed to call 911 and the call wouldn’t go through!!
This was on the OP6t with VoLTE monkey-patched into place. It wasn’t a call audio problem, it was an instant call failure.
The experience spooked me quite a bit, because reliable access to E911 is vital, and there is no easy method for testing it in my area.
@Sxan Fortunately I was carrying a separate work phone at the time, so I was able to summon the necessary aid.
The incident just made me think differently about my core requirements for a daily driver.
W/r/t RAM pressure, I was at least partially to blame. I was running waydroid in addition to phosh and the Librem 5’s measly 3GB of RAM just couldn’t handle it. 🤣