Well, I for one host my own Jitsi instance because of Internet censorship. The censorship is very bad here so major social media like WhatsApp and Telegram etc are blocked. And for cases such as Skype and Google Meet which aren't blocked the connection is sometimes throttled (not to mention that sometimes they just cut the Internet off) so that leaves one option: a self-hosted Jitsi instance on an Iranian data center.

Fun fact: Even on an Iranian data center, I had to limit the video quality on my own server to 360p because other qualities don't work great either.