Are any of you selfhosters using Cloudflare?

I want to make a server visible on port 80 and 443 from outside, however port 80 and 443 is currently used for another server.

I know we can reverse proxy but I have a reason why I am not using reverse proxy for this.

I have been told that I can connect to cloudflare like a VPN type of link. But going through their website I don’t find much useful information?

Is this possible or is it just rumors? If possible, what is the product offering to utilize?