How about the worst feature on the XSX controller: the share button. Once you accidently hit it(and you will, A LOT), it'll try uploading a screenshot and will then interrupt your gameplay like 5 minutes later saying it's uploaded. If you hold the Xbox button after the first notification you get saying "Screenshot saved" or whatever, you can cancel the upload so nobody has to see your stupid picture. BUT, it'll still give you another notification in 5 minutes saying upload failed.
The cool part is, you can change the the button mapping in EASE OF ACCESS setting to make it so you need to HOLD the share button to upload a screenshot. However, changing the button mapping for the share button doesn't actually save when you leave the menu. So it's literally an option, at the top of the button mapping screen, that you can change but will have no effect AT ALL. It doesn't work. Pretty neat Ease of Access there Microsoft.
And the controller is a little smaller than the previous gen version which also sucks.
What the fuck Bill Gates, fix yo shit