I think I left enough context clues in my post to understand that by "serverless" and "no server, thick client", I meant "the client also handles the server function" or "closing the client suspends operation of the server". But in case I didn't, just to clarify, when I said "serverless", I meant Kodi and things like Kodi, and when I said "server", I meant Plex and things like Plex, including Emby and Jellyfin.