Well I mean if they want a home server they will have to learn something.
Personally I just set my friends and family up with a stremio/torrentio/real-debrid setup. Nothing to host, I just pre-configure Stremio for them. Then they can just login on any device and it's good to go.
Whilst everyone should lookout for scams, none of what you said is true.
MyGov is a web app, not a government agency. Nobody "from MyGov" is going to contact you.
The ATO regularly calls people directly to discuss tax matters.