Given how many people are having issues pulling up PNRs or figuring out why they can't change seats, etc., I did some searching. Amadeus is used by so many airlines, there are actually some interesting data sources available.
As such, I've cobbled some stuff together.
https://acpnr.cowtool.com/
Enter your booking reference and last name, and you'll get a nice little screen of information. I promise I am not logging anything.
Here's an example that shows the type of information available. I continue to work to add more data.
As usual with this stuff, I make no guarantees it will work now or ever. If it fails once, just refresh. If it keeps failing and you want to help improve it, PM me the booking reference and last name.
I'm also happy to take requests for other data you might want to see.