Ugh, Reddit. Their amp version is terrible for the exact reason you mention. I know every time I see a Reddit page on Google results that I'll make two page loads instead of one (this does make a difference on my country, where everything is slow). Then, when accessing their pages on mobile browser, there's a huge banner telling me to download their app. In this same banner there is a dark UX pattern, where the call to action, giant button is to download the app, and the tiny footer text is "continue to mobile site". And apparently it doesn't matter I clicked through the banner before, it always displays the same annoying banner.
Sorry for the rant. I'm just genuinely disappointed in what the web has become.
Sorry for the rant. I'm just genuinely disappointed in what the web has become.