Did you have any issues with screen orientation? I have a waveshare round display in one of my projects too, they are great looking. Mine had an issue with wire orientation where I needed to have the wire emerge from the bottom of the display, but then I needed to rotate the picture to properly handle the rotation. It was tricky to get that working smoothly.

Also the display cuts off the corners on mine. Does it do the same for you? I'm not too bothered by it but it's only good for running custom SW where it's okay to be missing the corners.