Wireguard only supports UDP. The main reason being TCP over TCP is extremely slow.
You could try OpenVPN, I think that has a TCP mode though, as said, don't expect good performance.
this post was submitted on 26 Jun 2023
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For my setup, I used UDP port 443. For the vast majority of situations it works well as TCP 443 is for secure internet traffic. It seems admins often blanket 443 port open regardless of protocol 🙃
Try UDP port 123 sometimes that goes through the firewalls