Still using XMPP to this day and my current client is Gajim. Discord is still “better” overall than it. If XMPP could cleanly and neatly intergate voice chat (like Mumble) and support images and things smoothly then it would be great, but it does not. This is a big part of the reason “nobody” uses it beyond what happen with Google/Facebook.
You shouldn’t use Brave simply because it’s heavily infected with crypto shit and tries to monitorize your web browsing time by default. Not everything you do has to be a side hustle.
Sure you can “switch it off” but then why not use something else in the first place that’s focus isn’t trying to make money out of you. If Brave ever gained any decent market share the web would be an even shitter place than what Google is suggesting at the moment.