Apparently the 3gig service doesn't. Perhaps upgrade to that. An alternative would be to get a VM somewhere on the Internet and tunnel put to that to route incoming connections that way which is a bit of a PITA and also not free.
Ionos have a £1.20 per month VPS (so not free, but is cheap). The only real issue is needing to spin up another instance every now and then, as cloudflare is an arsehole.
Apparently the 3gig service doesn't. Perhaps upgrade to that. An alternative would be to get a VM somewhere on the Internet and tunnel put to that to route incoming connections that way which is a bit of a PITA and also not free.