Yes. Significant amounts. No, you’re not going to hear a lot about it, because it’s not a matter for outsiders.
As for the differences, well U’K are the ones who have a focus on the Pendulum Pretense to the point where actual loyalism and principle goes out the window (very strange allies, winning systems is more important than how, and so on). The ‘loyalism’ is about as true and deepheld as CVA’s. Primarily lip-service, and just used as a flag to wrap themselves in so they have excuses for their actions. Individual exceptions do unfortunately not invalidate the rule.
-EM- on the other hand, well they have a rather opposite focus, historically. The focus is almost 100% within our own borders, peace is to be pursued at almost all costs, you do not work with X, Y and Z, etc. I’d go so far as to say they are insular as hell to the point where it’s harmful to themselves and they not only lose touch but also relevance. Secrecy, vagueness and a stubborn refusal to ever be clear with even allies is one of those defining features that’ll set your teeth grinding. Of course, this second iteration does have a few differences. They’ll periodically pop into the Pendulum Pretense to sharpen dull edges and others stick their noses into null at times, but their primary purpose is largely sitting within Republic borders trying to make it a better place.
These two are very often at cross purposes, but are… sort of on the same side. Ironically, Electus Matari’s staircase program has probably liberated more of our people than U’K’s pendulum nonsense ever has. If you’re trying to pick who to hand over liberated slaves to, make it EM. U’K’s focus is quite simply incompatible with it.