i don’t use straps (i use chalk instead) and i actually wouldn’t ever recommend using them, even for really heavy weights. they don’t improve safety, all they really do is allow you to cheat and lift a weight that your body, based on your weakest link (likely your grip), can’t handle. you are never going to get stronger and be able to handle that heavier load unless you train your body to do that. if you are using straps you aren’t necessarily weakening your grip, you just aren’t improving it. i would much rather lift as much as i can naturally and improve my weakest link than use a tool to help overcome that barrier.
now if you just want to push other parts of your body that is one thing, but i would never count a PR or acknowledge the claims of a lift while using straps cause without the straps that person wouldn’t actually be able to lift that load.