Yes, I understand, but Matrix-to-IRC bridges has some major issues with join/part events. If someone joins or leaves IRC channel, it generates a new event on the Matrix side. This events causes native Matrix clients to show notification. It produces lots of unnecessary spam.
If we cannot get rid of IRC completely, maybe we can create some non-briged channels?
Note also we will be running our own bridge as part of our hosted service, so we will have better control and performance should be better, and we can have Element look into this issue. (Also, I know in the web client at least there is a “Show join/leave messages (invites/kicks/bans unaffected)” setting which one can turn off, and which we can possibly make off by default for https://chat.fedoraproject.org/)