Should I caulk these holes in my shower pan?

My shower pan has small dips like these (1 in each corner and 1 in the middle of each edge, so total 8) and the contractor didn’t caulk those. I asked on Reddit and 70% of people said to caulk over them and 30% said do not caulk over them. What are those and should I caulk over them?

Drain holes should be left open.


What he said :point_up_2::point_up_2::point_up_2:

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Roger that!