Hi @MidnightSun, were you able to solve your issue?
I suppose mine is a different one: when trying to set up Librem One from Preferences > Online accounts > Librem One, I get “TLS connection closed unexpectedly”. I’m able to connect to Matrix (e.g. with Nheko) with the same account from the Librem 5.
Any idea how to solve this? Is this a known issue?