I was looking at it from a perspective of who would be likely to install WG and set up their own VPN. This is me guessing (that's why I hedged and said probably), but I suspect there is great overlap in the tinkering and DIY attitude of Arch users and WG users.
Mostly I was responding to the statement that Arch was a niche distro.
Mostly I was responding to the statement that Arch was a niche distro.