Hmm, can you right-click on a webpage and then select an element to block?

That's one of the limitations in Chrome, that it's not possible to add filter rules dynamically anymore, which also means they can't auto-update the filter lists without shipping a new version of the uBlock Origin, if I understand correctly.

The other limitation is that the number of static filter rules that can be shipped with an extension is rather limited. So, it's possible that if you mainly use popular webpages, that you're still generally covered, but that some cosmetic rules fell by the wayside, or that you occasionally see ads on smaller webpages.

But it is also well possible that Edge allows for a higher number of static filter rules. That should be trivial to change.
Well, and they could still support Manifest v2 or might support additions to the v3 standard, so that dynamic loading of filter rules is possible again. (I believe, Mozilla has already specified additions for that, which Microsoft could just implement.)