There is no support within Umbrel directly but here is the solution:
Add radiokot’s app-store GitHub - Radiokot/umbrel-app-store: Radiokot's Umbrel apps
Set-up domain How to set up Cloudflare Tunnel on your Umbrel · Radiokot/umbrel-cloudflared Wiki · GitHub
Everything works great. Thanks to Umbrel Support for emailing me this solution.