wait until you hear why, and that you can optionally use e2e but lose other functionality.

And end-to-end encryption not supported on web client and doesn't sync properly between devices. Useless.

>> doesn't sync properly between devices

which is good, actually. We don't want a way through which a server could tell a new device all the information it needs to decrypt messags

I thought this was a long solved problem: the server syncs encrypted data, and the user provides the decryption key from another device (via QR codes, BLE, …)

Make it device-to-device then

yeah, it is good! I hate usability features too!

You either have E2EE or you don't. If you have usability, you don't have E2EE.

I can't have E2EE and also have cross device data sync?

counter point https://github.com/GrayHatter/toxcore/tree/multi-device (I guess technically you'd need https://github.com/uTox/uTox/tree/mdev too)