Cloud Beta ports needed for firewall rules

I am also getting the same behavior - 2 PCs running Outer Worlds on xbox beta. Computer-A will find Computer-B's cloud saves, but not vise versa. Computer-B will bring up the 'Gaming UI' pop-up stating "Your other device is taking a long time to sync
to the cloud". Computer-B is also behind PF scene firewall. Is it a port problem?

I went to the windows firewall and added new inbound rules and added the ports there, I am now going to test if it is going to work.

If the problem is port related, perhaps you also need to check your firewall:

open firewall ports on w10

You an do that or turn firewall off and see if that helps-

Some personal firewalls must configure the same inbound rule to enable the port(s) required by the application to direct the traffic to your computer. Could you try disable your personal firewall and see if any NAT changes are made.

I had a similar issue with uPnP not working correctly and only obtaining Moderate NAT.

The route round I used was to hard set firewall/port forwarding rules for each of the required ports and now I have Open NAT working fine.