Remove Creator Studio ads from apps?

Just downloaded new version of Keynote (v 15.1) OK, how do I remove the annoying Creator Studio ads in the format panel? (I assume they're going to show up in other Creator Studio apps as well). They are intrusive and very unlike Apple -- makes me worry this is a creeping approach to a MacOS bloatware strategy.

So, if no way to remove them officially, how do we dump on Apple to make this possible?