This is a new and bizarre one to me & googling has not turned up anything like this.
Photos app was open. (You can see it in the background of this screen shot.)
This all screen “notification” took over the screen. (I put “notification” in quotes as it doesn’t look like normal iOS notifications.)
The only time I’ve ever seen something like this on iOS was when in Safari and a site had some type of injected ad code that took over the screen. But, this wasn’t in Safari or a Safari view controller. It was in Photos!
I have no hypotheses on what this is or how it was made to appear. Could the carrier have injected this?
I’m curious if anybody has seen similar or has any additional ideas for what is going on?