It just simply won’t have the same turnout. Frankly I think weekend protests are more visible since the average person is more likely to be out and about and not at their job.
I think making the people see it and then you pressure the politicians. The politicians don’t give a fuck if thousands of people are gathered outside a building.
I attend my local protests and take the time off to do so. The last no kings protests pulled well over 1,000. Other weekend protests typically pull around 300 - 400 people. Weekday protests typically pull barely 100, if we’re lucky 150 people. It just has less impact.
At least in my city we are fortunate that the government buildings are located at a key intersection. Weekdays we usually just get heckled by lead brained boomers. Weekends there are way more cars, a more diverse audience, and more support in general.