As you know Google said they have begun the mobile-first indexing rollout a couple weeks ago and SEOs and webmasters are a bit nervous about it.
If those links in the content and source code of the pages are not equivalent enough I suspect the site will not yet move over to mobile-first indexing.
John ☆.o ≧▽≦ o.☆ @JohnMu April 10 2018 FYI - I have yet to see a site that has moved over to the mobile-first indexing process yet.
If your site has insufficient links on mobile you should be fixing that regardless I hate it when sites don't provide the normal functionality everywhere.
In short make sure your desktop and mobile pages are equivalent this is something Google has been saying repeatedly for a while.
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