Tchap (the chat part of the suite) is indeed a fork of Element. Unfortunately they haven't funded upstream development for many years (otherwise both Element and Tchap would be much much better!)
Visio (aka meet) began in parallel with Element's work on MatrixRTC and Element Call. Hopefully the two can converge, given they are both built on LiveKit.
Visio (aka meet) began in parallel with Element's work on MatrixRTC and Element Call. Hopefully the two can converge, given they are both built on LiveKit.