High CPU usage when idle
Using ac422376 on Fedora 28, Fractal now uses 13-18% CPU all the time, even when the room is empty (so it's different than https://gitlab.gnome.org/GNOME/fractal/issues/410 ). It's been running for a couple of days, with several sleeps in between. I have a few tens of channels open. Memory usage is ~400MiB reserved, which seems OK.
This may or may not be a version of https://gitlab.gnome.org/GNOME/fractal/issues/44 .
This is on top of #44 (closed) .