Since widgets and pop-ups rarely compromise the user experience on mobile devices, Google recommends using them instead of banners.

This statement is false. Google generally discourages intrusive interstitials, including many widgets and pop-ups, on mobile devices because they can significantly degrade the user experience by obscuring content and making navigation difficult. Google's mobile-friendly guidelines prioritize content accessibility and ease of use. While banners can also be intrusive if poorly implemented, Google's stance is against elements that block content, especially on smaller screens. Therefore, Google would not recommend widgets and pop-ups over banners if the former compromise user experience.