>>319095598
they have ever since constraints and even before that if you knew a thing or two about frag shaders or esoteric uses of dynamicbone or finalik, so... basically forever. 
https://vrcat.club/threads/tutorial-guide-twist-bones-what-are-they-and-how-do-you-use-them.3622/ 
here's the best way to do it now. 
TL;DR don't delete your twist bones in cats, keep them!!
The defaults are good for normies but you're not a normie, are you, super advanced vrchat anon. (really the only thing you should do in cats these days is eyebones and attachments and the new bake feature so you can be seen on quest)
you can prevent all kinds of weird movement entirely with this and a nice AV3 locomotion mask. It's actually much easier than a lot of other things and it makes you look like a god and never glitching around and janky. 
You can even entirely smooth out full body dancing jitters so you don't need to bolt your trackers directly into your femur to stop it from jittering. 
picture is a hip wiggle correction