Yes, students are going to cheat, they always have. If you are a college professor and you don't want to reward cheaters, make large percentages of a student's grade come from in person tests with no electronics allowed. Simple.
Tell the students up front at the beginning of the course. They're almost surely 18 year olds at least and legal adults.
What a college shouldn't do is outsource "detection" (much less in-source it), which is impossible to accomplish at an adequately low False Positive rate.
I know I’m in a small minority, and this wouldn’t apply to a large number of courses where online classes don’t make sense, but I don’t think the solution is exclusion.
They don’t spam my email and phone unlike Intuit (even after I deleted my account)