Not sure if this is the right place to leave this sugestion... indeed... if don't just move it to the right place
Since LibreELEC it's mostly used for media (player, streaming, etc...) i think thats a good idea to start thinking about a Openvpn alternative.
Softether is newer and much faster for this kind of stuff (streaming) so maybe someone can develop it to LibreELEC or add it as add-on.
Thanks