Really none of these VPNs are VPNs either since they don't establish a virtual private network. They are just tunnels for your internet access. Tailscale is actual VPN software. It simulates a private network.
WireGuard is VPN software. Tailscale is WireGuard-as-a-service.
WireGuard is VPN software. Tailscale is WireGuard-as-a-service.