Like other people answered I am connecting from my Macbook to my Windows gaming PC at home and play games on it. This feature is called 'Steam In-Home Streaming' and it works only over local network (or VPN in my case). 30Mbit is sufficient to remotely play at full HD.

It doesn't seem like exactly what OP is describing, but people buy cheap region-locked licenses to arbitrage different geographic pricing (i.e., it may be cheaper to buy a steam key in eastern Europe than in the US), and then activate the games over a VPN in the original region.

Most big companies will check the PayPal recipient address for country match (yes even for virtual), or an CC avs address match for country, or card BIN lookup. Spotify, Netflix, etc. This is often for compliance, for example VAT collection in EU, or license rights affected by geography. IP Geo is meh, I'd even prioritize your Accept header locale over that.

3rd party resellers in-country facilitate this and take a cut.

i'm not the person you've responded to but i can think of several reasons to use zero tier for gaming:

* gaming hardware is at home and you're playing on a mobile device

* region locked games. there are quite a few on steam.

* LAN games that you wish to play with friends

ZeroTier is actually peer-to-peer, so the added lag isn't as bad as with other vpn solutes such as openvpn

People rent monster GPU VPSs by the hour and play over remote desktop or whatever

You could also use Nvidia Geforce Now. Works quite well.