I don’t think you’re wrong. Yet OP mentioned the 6700xt, which I believe is slower than the 3070…
Kinda why I recommend looking at the gamers nexus articles, because that should give them a good idea of what the current AAA performance of the cards is and would allow some extrapolation based on what they think is relevant to them.
Unless OP goes for flagship GPUs, there’s going to be AAA titles in 2-3 years that won’t run at 60fps 1080p Ultra settings. Especially if they want it to be all big budget games.
There’s a “hub” mode where your endpoint inside the network grants access to the whole network like a standard VPN server.