Summit, Voyager, Boost, Thunder, Eternity, Connect etc.
Actually this feature is a requirement to me (as well as a button/shortcut to hid said read posts) so if a Lemmy client does not have it I just won’t use it (reason number 1 why I stopped using Sync for Lemmy, it has been broken for months now).
No, what I think cinemas will get from this is that people are not interested in original films anymore (I am unsure if both movies are… I am leaning towards that they are) and then keep selling us the same movies over and over again.
TubeCast is not a full Chromecast implementation nor will it ever be. It only supports the first revision of the Cast protocol and will only keep working while Google keeps backwards compatibility with the Cast V1 protocol in their youtube mobile applications (at least for service discovery).
This disclaimer doesn’t sound too confident, but if it works for op, then it should be good in the meantime.
Only if you have a very old Lemmy instance.