I'm considering switching to postmarketOS on my primary phone (Xioami A2 Lite)

I have a Xioami A2 Lite, the version with 3GB of RAM, it runs Android One version 10, it's not so great performance wise but it's sufficient for my needs, anyway, after checking out pm site I found out it's supported via community builds, most of the stuff seem to work, but I'm worried about receiving calls and text messages, I also have some Android apps that I must run (though a container on my laptop would do the job actually but it'll be best if I could run them on the phone), also I don't have an OTG adapter so I'm worried if I'm ever stuck I can't switch TTY and reboot, also my phone's lock button is kinda stuck and needs some weird angle to respond, I have some old extra phone around in the case calls don't work on pm but I'd rather use only a single phone, I have zero use of any bank apps, and I don't have much of experience with roms installing and kernel baking, I have been using GNU/Linux on my laptop for three years and I have good understanding of how things work in a GNU/Linux system, what do you suggest for me? I'm fine staying on Android if that's the best option until I get a new phone