Like I don't have space in my life right now to do a whole lot of actual tinkering but google is pissing me off and I just remember in middle school just being able to change the boot order in the bios and plug in a usb stick and a few hours later having mint installed. What's the easiest way to get a clean de-googled os on my phone?

Since it keeps coming up, I have a unihertz atom, a moto g 2022 and one of these monstrosities

Extra bonus question, if I do wind up buying a new phone in the future what brands should I look out for? (But I'd like to keep using what I have until the hardware breaks if possible).