just what the title says

The "Armor Physics" button toggle (or option was removed in one of those versions if I recall correctly. I'm only supporting the latest versions of the mod officially, so 1.18.2 will not be updated.

I know the armor physics itself was removed before the button was (which caused the button to do nothing for an update or two), but it was removed entirely and re-added in a later version slightly different than it used to behave.