This information is current as of Sept 30, 2020, with the example device running Android 10
Open the Google Play Store
Download the CX File Explorer App
Open the CX File Explorer App and select the Network Tab
Select the + icon, then select the Remote tab and click on Local Network
The application will scan for shares on your local network
Once your share pops up, select it
Type your Username and Password for the user on the share, or select the Anonymous checkbox if accessing the share as a guest (if the share is configured for such)
Press OK and if the Username and Password check out, you should be connected to the share!