Currently, when I'm out, I only use my mobile data. However, in many places, there is no mobile data signal, but there is that good old public Wi-Fi.

I was thinking of setting up a VPN server or a gateway for ZTNA. So, here's the question: considering data protection (i.e., using open Wi-Fi) and privacy, which would be the better option?

For VPN, I was thinking of using WireGuard, and for ZTNA, the Zero Trust from Cloudflare.

Instead of simply subscribing to a VPN/ZTNA service, I was considering setting one up myself to also access my services from outside the network.