> though I don't know a P2P solution that's recommendable
Matrix may soon become one: https://arewep2pyet.com/
Matrix may soon become one: https://arewep2pyet.com/
https://hanez.org/document/why-matrix-sucks/
https://paper.wf/alexia/matrix-is-cooked
https://xn--gckvb8fzb.com/giving-up-on-element-and-matrixorg...
Sorry, this is admittedly a harsh response, but not out of the blue…