I’d caution anyone against plain old browsing around on there for servers, since there’s a lot of illicit ones out there. Look for specific terms like “Catholic”.
Interestingly, there’s an SSPX affiliated server and even a Dimond Bros server (they seem to be everywhere on the Internet).
I so badly wish the Dimonds would just stick to anti Protestant apologetics TBH. They're like super strong there. And as a former Protestant that's something I have a passion for. I will selectively share their anti Protestant material with the sort of person who can handle the tone and the caveats.
But they need to stop heresy hunting with other Catholics lol.