Serious limits on Cloudflare Tunnels:

1. Only works if you use Cloudflare as your domain registrar for that domain
2. You can’t use it for anything high bandwidth, specifically including streaming media (e.g. Plex/Jellyfin)
3. They reserve the right to her!image your service tunnel randomly at any time without warning for any/no reason unless you pay them for the service.

And that doesnt address the issue of getting in bed with Cloudflare (which has its own ethical ramifications).

I’d recommend one of the alternatives like localxpose.io that offer the same thing but without the limitations. Or you can slap together your own with a wireguard tunnel to a minuscule VPS with some routing rules on it. Both are about €5/month, which is cheaper (the same?) as paying for Cloudflare Tunnel to avoid the random termination and vendor lock in.