Ubiquiti is business oriented, not consumer. It'd be very foolish for them to snoop on the traffic of their business customers.
Ubiquiti is also a traded company. Their stock would crater in lieu of such news.
As a consumer, besides reliability, privacy is another main reason to paying extra for enterprise gear.
Give MiroTalk a try. Can be self-hosted and just like Jitsi, no need to install anything, it's all in-browser. Has all the features you're asking for.
https://github.com/miroslavpejic85/mirotalk
If you want to test drive it:
For the known top trackers, it's to have more control over nefarious users such as duped accounts, banned users and potential law enforcement trying to sign up. Sure it's not a bulletproof solution to deal with bad actors but it's still an effective way. You gotta remember that these trackers are free (yet private). The admins/operators don't get paid, so last thing they want to do is waste time dealing with such users.
At the end of the day you still have to trust them with your real IP, but it's mostly to protect themselves afaik. I obviously can't speak for every tracker out there.
As much as I agree with you, fact is, if the ship sinks, so will Librewolf🙁