Having worked with a UE5_main build that’s less than a week old, I think I can answer that question somewhat. While it is true that the feature set is generally very expanded and performance is significantly better to UE5_EA, it is also profoundly buggy. EA2 underwent QA testing to my knowledge, and even if the performance is relatively poor, it was at least shippable enough to run Valley Of The Ancients (don’t know about the version used in the Matrix Demo however).
I’ve been using UE5_main for testing purposes, and while it gives me a good idea of how UE5.1 will run, it also has a number of strange problems (water actors and landscape dissapearing, odd volumetric fog behavior, etc).
Not saying EA was bugless (I lost multiple weeks of work to their OFPA system), but I think it’s generally stable compared to _main, not nessesarilly better.