From what I've seen, Matrix is far worse metadata-wise than Signal. If Signal is bad, Matrix is worse.
What have you seen? I haven't come across anything to suggest this.
https://gitlab.com/libremonde-org/papers/research/privacy-ma...
https://github.com/matrix-org/synapse/issues/8473
Synapse does a lot of logging, apparently. I'm not sure I'd touch Matrix with a ten foot pole.
What have you seen? I haven't come across anything to suggest this.