Starlink uses NAT. Port forwarding is not possible with NAT. For incoming connections you must use a VPN or proxy.
Many of us have set up VPN servers on VPS host providers such as Vultr. A few of us have implemented VPN servers using 44-net address blocks from AMPRNet for ham radio. I wonder if Allstarlink could provide a VPN or proxy service for Allstar nodes similar to what IRLP does for their nodes?
David WD5M