I know it was asked about “free” VPN.
Never ever believed in them as trust and logs is an issue.
But NordVPN runs on firestick with no issues. Yes its costs money but i think it gives 5 or 6 connections on one account.
So not bad to share user/pass with 5 or 6 family and friends. Should work out about £6/£7 each for a year. Thats a proper no logging good speed VPN.
One can go into firestick and friends/family can use it on phone/laptop/enigma2 and so on up to max connections.
(maybe better avenue to look at for all it costs)