@potemkin_ai Indeed, Jitsi itself, running alone, in its own comfy space, installed per the Jitsi guide does run smooth as silk (albeit with some occasional drops). It is when you get into other implementations that are not Debian/Ubuntu that it seems to have issues. I've tried the OpenSUSE and Docker deployments and eventually always encounter an issue with colibri/websockets.
As for Element Call, they seem really focused on their new Element Starter Suite and Element Server Suite which is a lot like Element Matrix Services (EMS) but self hosted. Element Call is part of some deployments and really sparkles there. What is really exciting is that the Integrations options have really revved up.
I am testing both suites now and can say this is the most complete Element has felt when self hosting and I am not just saying that because you can default your deployment to use Hydrogen instead if you want to cut some bloat. Ha-ha!
Element Server Suite can integrate with everything and the kitchen sink and is apparently the only one who Element Call wants to be friends with.