I’ve found that as well with some files. At first I thought the issue was with the jellyfin instance had not enough capabilities, but after trying the same file with its subtitles, it worked on any other client: flatpak, web, and regular android. So for me it is the chromecast/androidtv device, so I am now looking what to replace it with

I think that would be something related to your DE. In my case, I have the Plasma Integration plugin in both Firefox and Chromium-based browsers, allowing me to play videos full screen for long periods, the only nag being that if I have it full screen on one of my displays but there is any other window focused, it triggers the screensaver. For those cases, there are a few ways on KDE to prevent the displays to enter any saving mode with no more than 2 clicks, or a shortcut if you prefer to configure those

https://sonoff.tech/product/diy-smart-switches/zbmini/

I have installed LEDLUX smart wall socket (around 25€), MOES light switches (around 30€ for a 2-gang switch), both of which are quite easy to install as it replaces what you already have. I have used Sonoff zigbee relays (around 50€ for a pack of 4) as well as Avatto mini zigbee smart switch modules (around 20€, single and 4-gang modules), but it may require some modifications on your current installation

Or go with a zero, plug and play socket, like the Nous A1Z smart socket, around 15€ each. Just plug it onto your wall socket.

Protonvpn has a free tier

I surely missed that setting. I am playing with it, it seems 85 is the sweet spot for me. Thanks!

Have you setup your home screen? You can do that on the dashboard, hiding, grouping, etc.

If what you’ve watched has nearly ended, it won’t show for continuing. I have the opposite issue, some shows has a long outro/preview of the next episode, so I have to either mark it as seen, or fast forward near the end for it not to show on the continuing watching section

So you "self"host elsewhere?