Something i've noticed that proton is very good at is making sleek and smoothly working designs -- as such, for the purposes of providing a secure direct messaging app i think it would be optimal to have a proton hosted home-server, and also, a proton made client, because i think proton could use such a program, nad i think it would really be able to put some needed functionalities in the matrix protocol, like a good voip feature, as proton has a video calls program , and a good moderation managment system, and perhaps most importantly a good decryption encryption handling -because something ive noticed is that either you get closed systems like signal and telegram - which need phone numbers and dont really support multiaccount, and has a lot of payy for features that should be free, (like custom reactions, stickers and gifs), but also translation and such, which could be worked out with Lumo.

also, i guess with the proton cloud and document features i guess it could cointeract with those for a convenient cooperation thingy, so that its convenient to upload and manage and chat and comment about work as its being done, a very good matrix compliant basically teams app, that also can be used as a fierce discord competitor.

idk, im trying to sell you a bigger idea so that you can basically fix some things i think need polishing in matrix, because matrix is one of the few direct messaging apps that i trust, and i like that it, like the mail client would be part of like a federated communications protocol, which would be helpful for a lot of things and strengthen the encrypted communications field.

and like element is doing a good job, but it would be nice with another big player in there to really make it viable aginst discord, zoom, and Teams, cause frankly im tired of classmates and colleagues making me use such spyware for everything...