It’s probably on the app, apps like snapchat implemented this feature a couple of years ago to notify the other user that a screenshot was taken.
Now that I’m thinking of it, It’s a possibility the application is not actually detecting a screenshot, but that the buttons have been pressed to create one. So perhaps one could circumvent that if you could edit which buttons to trigger a screenshot. I’ll google it, it’s intriguing me
I never used sync on reddit (was on boost) The dark overlay feature is absolutely amazing for me
Personally I don’t pay for ultra and don’t really notice the ads