Random niche information that I couldn't find elsewhere:
replacement original Switch JoyCon Rail screws do indeed fit the lower two screw holes on each of the Switch OLED JoyCon rails, if you happen to need replacements for those exact screws.
I get what they were trying to say but what the ad actually says is "we tried to cram a ton of features into the iPad but all of them got irreparably mangled
in the process."