>and the "real phone" from aliexpress or whatever that is purchased rooted and you actually live your real life upon.

Ironically the phones with best third party rom support are google pixels. Good luck getting lineageos support or even unlocked bootloader on a random aliexpress phone. You might be able to sideload without restriction, but the ROM is probably gimped, won't receive updates, and has random privileged apps possibly spying on you.