It has a rotating collections of films on top of its base catalog. It groups the films into featured collections for presentation. I've never found it to be heavy toward any particular genre.
It's my favorite subscription. It's also my favorite app for discovering new movies. Here's what browsing currently looks like:
I was basing my opinion on both their historical bread and butter and a quick peek at their all films list. But, yes, looking at the browse page it looks broader.
https://www.criterionchannel.com/
https://mubi.com/