Ah, that's cool, I hadn't even looked into options like this as I always intended my node to be closed. But this wont ever do what a proper self-hosted bridge can. When installed and attached to the matrix server you are on, the bridge is able to do a lot more thanks to the access permissions that brings. Such as double puppeting, which means that if you send a message in discord, it actually gets bridged in reverse, and the bot add the message as you in matrix, too, keeping both chat histories matching.

With mautrix, you get everything you had in discord, in your matrix account:

Spaces are used to mirror every server you decide to link, and the DM section is also present. The inly thing that doesn't work is anything with voice or video.

Do you host your own matrix instance? Or are you on someone elses?

It's probably fine, but I recommend never using tools like t2host.io. If anything happens to them, the credentials of thousands of users could be exposed, if you self host your own bridge the risks are lower, as someone would have to target YOU directly and hack YOUR server directly to get the credentials.