Ultimately your site, keep in mind that different devices are used differently. Elements of a page that might be perfectly reasonable on a desktop computer can be very difficult or frustrating on a mobile device, such as a long form or closely spaced clickable links. Being without a mouse or keyboard drastically changes the experience. Also, consider the consumer's state of mind when on desktop or mobile. Depending on your business, a consumer may be more
likely to take certain actions at certain times of the day, which may or may not coincide with the use of certain devices. For example, some B2B companies may find that long-form content is more likely to be consumed during the day (and therefore on a computer), while those jewelry retouching service using a mobile device in the evening may simply want a brief synopsis or video, and the ability to submit a quick form with questions. Want to know if your page is mobile friendly or not? Check out Google's free mobile-friendly checker.
While it can't give you a full breakdown of intent guidance, it can help ensure that the site structure facilitates a positive mobile user experience. For more information, see the mobile usability section of Google Search Console, which will provide tips for improving mobile usability. Establish credibility and develop trust. One of the best lessons I've ever learned was from a paying search client. They said, "We don't include the word 'trust' in our ads because we don't think we can just tell someone to trust us."