Only the federated networks, no one controlling entity nor country, best part is open source, because we the people, get to say what goes, and what doesn’t.

About that… None of these are safe. Signal is not safe either.

Frankly, I get it. Telegram has no security nor privacy at all

I’d like to suggest NextCloud? But if public, and thus, sharing events, maybe Friendica?

mpv (url) or yt-dlp (url)

For me, its NextCloud or bust, I personally suggest AllSync as a hosted. $10/yr for 50gb with all apps available

NextCloud Health integration?