Many thanks.
I never knew about this Plex Relay. I just read about it and it's a good solution for low bitrate stuff. Most of my stuff is very high bitrate anyway. The other 2 suggestions are overkill for my very basic setup, I just assumed most people accessing remotely were port forwarding like me!
I will leave it as it is for now, forwarded ports on routers for 2 decades, not had any real issues, never felt the need to use a VPN either apart from a couple of one off visits to blocked websites over the years! Also costs nothing
rp2000