Recently after trying to troubleshoot why port forwarding wasn’t working for me I found out my provider spectrum uses CGNAT and when I called to ask about a static IP they said that wasn’t an option. And they said I provided my own modem that I can setup my own static IP. At least to me this doesn’t sound right but I couldn’t find anything exact and wanted to see if this was true or is it best to follow the other methods of port forwarding such as zero tier or using a vpn with port forwarding.