Isn't another reason they constantly change up UIs is for the sake of novelty? Doesn't novel design signal "newness" to a prospect, which gives a desirable air

Isn't another reason they constantly change up UIs is for the sake of novelty? Doesn't novel design signal "newness" to a prospect, which gives a desirable air of greater relevancy and trendiness? And does not this "newness" convert into more sales?