Am I going mad or did there used to exist an option to globally block screenshots being taken on the phones?

I've suddenly noticed I am able to take screenshots of any part of GrapheneOS unless a 3rd party app is setup to block in that particular app.

I've had a look but I am no longer seeing an option in GOS settings to turn back on blocking of any screenshots

9 days later

The feature was removed in recent updates of Andoid / GOS

a month later

Are you sure? I've comited to user accounts now so it's hard to test but I felt the feature stopped working when there's more than just the admin/owner account on the phone.