I've only ever used zoom in browser but jitsi does use more resources, in my experience ,on Linux. but the grand scheme of things my workflow only uses video calling a few times a week. I can spare the compute to spare myself the privacy.
A social//religious group I am apart of has been using Jitsi for our virtual meetings in lieu of physically meeting in person. It is great and has been for months -- so much so that I forget if I've ever used Zoom.