This is not a forum from LG, Like it said on the top of the page, it is a forum of WebOS users on TV. There are no LG employees here.
If you need to switch to Android TV buy a Android TV box. You can buy them under 50 Euro's. Problem solved.
Other solution is to use a player like Plex and the Plex app on the TV, also a solution.
unlike computers with hard drives, tvs do not support downloading,they have very little storage space,,You are basically stuck with any apps they have for downloading.
Have you approached Jio TV to ask them when they will be producing an app for webOS?
This figure of other manufacturers being 60% cheaper than LG makes me wonder why you bothered buying the set you did if you knew that everyone else was cheaper and provided a better range of apps.