sorry - but your schematic screenshot still shows the old OLED, so I cannot approve this yet :( additionally, please cut out the top of your case over the RP2040, as you're going to need to be able to press the buttons on it when the case is assembled!

You're using the wrong oled model!! This won't work, you need the 0.91 inch I2C oled model, a link to the correct footprint can be found in the Design Resources part of the website as well as the Slack. Keep it up!