The HTPC app will be able to play many more file types natively, the smart TV app is more limited. If you are a tinkerer you can edit the MPV player part of HTPC to do somethings Use `mpv` features which are not exposed in Plex for Windows/Mac/Linux and Plex HTPC
As far as other features mostly the same as they share the interface.
But if the LG app is working fine for you then I see no reason to complicate things connecting laptop directly to TV. Don’t look for solutions to problems you aren’t having.
