I have not worn a weight belt in years although I also do not go as heavy as I once did. Having said that what is the current thinking of wearing a weight belt when doing things like squates?
The thinking on a belt has always been it can be a tool to help increase intra abdominal pressure so you can have better transfer of power through your trunk when loads get high. That has not changed. A belt doesn’t keep you “safe” or anything like that.