I can't upload an image at the moment.
Some websites I go to below the safari address bar there is a slightly gray bar with the URL in it with an X on the left?
hold on...are you getting the AMP page by just going to the website or by going through google search results?
if you're getting there via google, then in the search results, you can look for results that have a little circle-lightning icon that indicates it's using AMP. then just avoid those results
They should really provide an option within AMP to view the regular article without AMP. Thanks for the desktop tip, at least that is some sort of a workaround.