Matrix has recently changed to their inhouse-built "Element Call" feature, so Jitsi isn't required anymore. It is/was a PITA to set it up anyways.
Setting up element call is another challenge in and of itself, and pkg synapse itself is way outdated, the package maintainer isn't making much of an effort to keep it up-to-date. Last time we were enough people to force an update with complaining, the freebsd version was 10(!) versions behind the official one. Now we're just ~5 versions behind afaik, so far.
Exactly because of this, over time, I'm planning to wander off the PKG route and set up matrix and element call with scripting within a freshly installed jail so I can always have the latest version. I'll report on the progress if anyone's interested. I need to get a more up-to-date synapse+element call+whatever else needed running, since matrix is my main communication platform.