It’s been pretty seamless for me. I put the Connect for Lemmy icon in place of RIF, so habitually open it instead. I’m considering contributing to Jeboa now (i do android dev), it’s not a very good app but a lot of people are using it… kind of a bad first experience.
There is 1 server running the instance you are on. One. For tens of thousands of people. Compare that to millions of servers that the biggest social sites use.