It seems unlikely that there is a large contingent of people who Google a restaurant (which they must be doing in order to get Yelp's number), ignore the listing of hours right next to the number and call the restaurant to get the hours. I believe it happens, but I have a hard time believing that particular sequence of events accounts for even one call in 50.
To clarify: You're saying you do this more often than you order takeout? Especially during Covid? Because I explicitly said I believe it happens, just that it's a minority of calls.