It’s also why tablets never really took off. Sure a lot of people use them, but mostly as a big screen phone in portrait orientation. But they could be so much more if designers actually designed apps to adapt to changing sizes. Even something simple like displaying two screens of a normal phone app side by side in landscape mode rather than having to switch back and forth. But ultimately, cost makes developing for multiple screen sizes a “low priority feature”, and those kinds of things never get funding. Instead they would rather put a feature that looks cool to investors and executives the product managers are trying to get to fund the project and on marketing materials to get sales people on-board, but is ultimately useless to the end user. Which comes back to the main problem in late-capitalism. The end user is no longer the customer, the corporate overlords and their investors are.