Based on your plugin description, you should have already tested it:
Based on Maxmind GeoIP2 data Geo Targeting plugin for WordPress will let you create dynamic content based on your users country.
With a simple shortcode you will be able to specify which countries are capable of seeing the content.
Compatible with WordPress Popups Plugin. You can now geotarget your popups
If you use popular firewall services such as Cloudflare, Reblaze, Sucuri, Ezoic, Akamai or Clouways the plugin will auto detect real IP from users.
source: https://www.ads-software.com/plugins/geotargeting/