Open VPN server config

i am trying to configure open VPN server on my GL router and it automatically provide me ip address which is the same in the video tutorial ? i thought it would provide me my home ISP ip address for the server configuration. Please advise also if i can use my home ISP ip address to do the server config is the server subnet which you’ve defined in the config, not really sure what you are asking here?

Definitely not. But maybe you want to have your questions in your other post.