YouTube TV is a US-only live TV service offering 100+ channels including ESPN, CNN, and local networks. For American expats and travelers who want to watch US live TV abroad, a VPN is the only solution. The reason for this is structural: streaming services license content country by country, and YouTube TV's catalogue in each market reflects whichever distribution deals were signed there. A title that's available on YouTube TV in the US might be on a competitor's platform in the UK, or vice versa.
A VPN sidesteps the geography problem entirely. YouTube TV sees the IP of GhostShield's exit server, not your real one, and serves you the catalogue for that exit region. The streaming app makes no distinction between a 'real' local user and a VPN-connected one as long as the traffic looks like residential broadband — which is exactly what WireGuard with ChaCha20-Poly1305 over GhostShield's network produces.
What you can't do is bend the laws of physics: a stream from YouTube TV's US servers will always have more latency from far away. Pick the GhostShield server closest to YouTube TV's data centres in the region you want, not the one closest to you.