ok I just checked there and it doesn't show the scramble feature. It only shows "lock after screen timeout", " power button instantly locks" and "allow camera access when locked".
I'm in the owner profile on the newest release (2fa PIN release). The scramble PIN setting also doesn't show up on my other profiles.
I already activated the scramble pin feature months ago, so it showed up for me in the past.
and it's also working in every profile I activated it. It only doesn't work for the new 2fa PIN. That's why I wanted to switch the scramble toggle off and on to see if the fixed the problem. And that's how I noticed I can't find the scramble feature / it doesn't show up for me.