I've been flashing phones for over 2 decades and have never bricked a phone. How did you manage that?

I flash phones almost every other week. And tablets. I have been flashing since Androids came out. But never bricked. But maybe that is why I don't have any problems.

Potential for a brick varies massively depending on phone model, doesn't it?

it's pretty much impossible to hard brick phone, you can almost always recover it

I'm running custom ROMs for the last 15 years