Yeah, few moments ago it hit me there could be a market for a phone case with in-built camera(s) that photograph your screen at a shallow angle on demand, and transform that into a screenshot automatically.

However, my idea happens to hit a very new limitation: for some reason, "privacy filters" are suddenly a thing. New phones have them built-in as some new magic display function, and for everyone else, there's this mad marketing push to get people to buy and use privacy foils in place of glass/foil screen protectors.

IDK what's up with those. Since when "shoulder surfing" with smartphones is a real problem, and why do marketers and product designers bet there's so much latent demand for it?