During the submitted question and answer segment of one recent John Mueller hangout, an SEO professional asked John about AMP pages.
Their main question was: should we expect a drop in traffic if we remove AMP?
John said that he is assuming that this is a setup where there are traditional HTML pages and AMP pages.
He expanded on this with the fact that there are some search features that are limited to AMP only pages.
However, he doesn’t believe there are any at the moment and would have to double check.
He reiterated that he does not believe there are any features which are just limited in scope to AMP pages.
The thing he mentioned about AMP pages is that they do tend to be very fast, and it’s also easier to make very fast AMP pages.
Since Google uses speed and page experience as a ranking factor, it’s something where if you have a lot of very fast pages in AMP, but you switch to slower pages that are non-AMP, you may see an impact there.
You can make very fast pages that are not AMP also, so speed is not limited to AMP.
If you turn off AMP on an AMP website, you may see a transitional period where remaining AMP pages are in the AMP cache, and it’s taking a while to purge those out.
However, it’s still possible to turn these off.
This happens at approximately the 30:43 mark in the video.