I’m pretty sure the key is stored on the device, which is backed up to Google. I cannot say for sure if they do or don’t backup your keyring, but I feel better not using it.

End to end doesn’t say anything about where keys are stored, it can be end to end encrypted and someone else have access to the keys.

At least where I was, when it came out it was $5 for the ‘six-dollar burger’, almost immediately after they threw in a bunch of other ‘big’ burgers. Odd that they tried to makr a 1/3 pound burger seem huge when McDonald’s (at least in America) had been offering double quarter pounders for longer than I can remember.

Jitsi was a pain for me to get working the way I needed it, but I have to say I’m a fan so far. I haven’t used it too much yet (mainly just testing with myself from various networks/devices), but from what I can tell it’ll work for my use (replacing Google Meet for my family chat uses).