I’ve created an option group which is ordered to the top of the groups list.
I have set various rules for it to appear, at the end of the rules I have set for it to not appear on a specific CPT, but, The option group still appears everywhere.
A screengrab for your delectation:
The last rule
Post Type is not equal to Event
That basically overrides all the other rules. If the post type is not event then it will show the group. Since this is for pages, you don’t need that last rule.
Also, this rule
Page Type is equal to Top Level Page no parent
should be combined with the other rules as an AND unless you want it to appear on all top level pages regardless of what template they use.