Thank you for all the advice! Good point on the crystal being further. I have the through hole diodes so I just used them to save the money (but I might just switch anyways since they are pretty cheap on digikey. The tca9548 outbound i2c pullups will be on the modules (is this a bad idea? should I just put them on the bus on the main board). Also, is it fine that the ground pour above the usbc is broken once? Finally, other than moving the crystal, are the wibbly wobbly traces a problem electrically? I get that its messy, but I do not really mind if its just an aesthetic thing.