John Mueller said on Twitter that websites shouldn’t make Google guess. Google cannot separate accidentally-bad from purposely-wrong.
A website used FAQ content on the mobile version of a page and other structured markup on the deskop version of the page. That can confuse Google:
Some sites like to make us guess. I don't think that's a very good or sustainable way to do it. Sometimes we guess right, sometimes we guess wrong, sometimes our algorithms can't separate accidentally-bad from purposely-wrong.— 🍌 John 🍌 (@JohnMu) October 17, 2019
How to send the right signals
Use the Top 10 Optimizer tool in SEOprofiler to make sure that your web pages send the right signals to Google: