We've been running production traffic via Cloudflare Tunnels for over a year with no problems. Ngrok and tailscale both run similar services, too.

There is also https://pinggy.io which is even simpler to use. Just paste one command like ssh -p 443 -R0:localhost:8000 qr@a.pinggy.io

But you don't have as many security issues as well :)

This is why I never leave my house too :)