Great news!
I’ve just installed Samsung’s latest update (Security Update Sept. 1st) and Blokada works perfectly on it. Obviously, Samsung did indeed fix that VPN bug with its latest security update.
Just to let you know, I have a Samsung Galaxy S10+, running Android 10, Security Patch 1st September 2020.
This was not an automatic update. I was not prompted to install it even though I have auto download enabled. (Just so people know.) I had to manually get the phone to look for it!
I found it through Settings_Biometrics and security_Security Update.
You may also find it through Settings_Software Update.
Thank you for all your help.
Steve N.