After years of enjoying a static IPv4 address for free, migrating to a new ISP required either paying a monthly fee for such a priviledge... or simply running a Dynamic DNS service to keep the relevant domains pointing to the correct IPv4 address as it updated.
Headless Steam is like a self-hosted GeForce NOW, which can be useful to play games in a browser while away on holidays. Although mainly intended to play Steam games, it also supports EmeDeck, Heroic and Lutris, all easy to install via Flatpak, and supports Intel GPU which is already setup for Jellyfin on Kubernetes with Intel GPU and not actually getting a lot of use; running games would probably be a better use of that Intel UHD GPU.
Streaming a Gaming PC straight to an Android TV turned out to be easier than expected; it essentially was much like with Steam Link in the past, and now the WiFi network is a lot faster!