Reddit Moderating "High Activity Communities" Has a Limit per Profile?

Has there always been a limit on accounts that states you cannot moderate more than 5 high activity subreddits?

I just saw this on my account through the App but never saw this before when working online via browser

I never glanced at certain settings and just happened to do something for the first time today and noticed it.

Pretty sure this is a new thing and not around in 2023/24