I started installing the node according to this guide: https://bitcoin.org/en/full-node

And while the synchronization is in progress, I found that the node will not work without the static IP address. As I understand it, my ISP does not allow me to open an incoming port. Please, correct me if I'm wrong.

I ordered a static IP service and will continue installation in a couple of days, just at this point the synchronization of the network will end.