You are right. My bad

Yes it should work https://support.plex.tv/articles/201214366-casting-support/

Raspberry Pi with Plex?

For me they are even better than Google. But I use Qwant now.

Chrome ➡️ Brave - Open source and privacy focused

Search ➡️ Qwant - Good search results and privacy focusing

Photos ➡️ Immich - Pretty much Google Photos but self hosted

Drive ➡️ Nextcloud - Use it with Hetzner Storage Share, pretty cheap and easy to use

Gmail ➡️ mailbox.org - European email hosting focusing on privacy

Meet ➡️ Nextcloud

That too.

Because of network effects.

Building a social network is hard. A typical chicken or egg problem. If you don’t have a user base, nobody is willing to join, and if nobody joins, you don’t have a user base.

It usually requires a bunch of money to build a social network.

The fediverse has a long time to go but I believe it will win sooner or later.