If your ISP (Internet service Provider) doesn't have you behind CGNAT or Double NAT (meaning that multiple homes share the same public IP), some ISP block the first block of 1024 ports, so any port below that number is blocked.

If the problem is that ports below 1024 are blocked, but you do have a public IP reaching your home router, you could contact your ISP so they unblock these ports for you (I had to do that once, so at least with my ISP it was as simple as asking).

The way you could test if your public IP reaches your home router is by exposing something on a higher port than 1024 like let's say 8080, if you can reach a simple web or caddy or any other service from 8080, you can at least confirm, that is the issue.

Be aware that most ISP even if they assign a single IP per house, this IP can be dynamic and can rotate on a regular basis, like daily or weekly