Google has said that the upcoming mobile update is an "on or off" thing, where you either do well or you don't, with no grey areas. So how can you tell if you're going to see a positive or negative outcome? Easy!
Take out your phone, look up your web site. See if there is a gray mobile friendly label in your description snippet. If it is in the search results, if you see it, that means that Google understands that your site is mobile friendly and if you don’t see it then we don’t see that your site is mobile friendly or your is not mobile friendly.
For more info, see https://www.seroundtable.com/google-mobile-friendly-label-test-20044.html