i’ve been debating this lately. when i powerlifted, we used steeltoe boots cuz of the hard unyeilding sole and slightly raised heel… It’s amazing how much solid footwear can improve your stability.
My coach wore those inzer squat shoes, just as stable, only a slight rise of the heel, but cost a bit more. I would recommend these to anyone who can afford them.
since my form is a bit different, and i don’t do quite as heavy weight, and cuz i like them, i’m probably going to switch to chucks.
As a side note, we used to deadlift in wrestling shoes. reasonably cheap, totally flat, and tons of grip.