There’s a download link on the website. Discord isn’t needed.

Yes, a LOT of people. There’s countless videos on YouTube, especially since the Steam Deck’s release.

https://youtu.be/Z5OE6k31i8c

100% on Samsung Browser with AdGuard extension, and AdGuard Home as my DNS Adblocker.

Discord doesn’t care about privacy, if you do then Discord isn’t the service for you. You could use a burner number, or host your web VoIP server where you don’t need to worry about your privacy.