This thread is resolved. Here is a description of the problem and solution.
Problem: When I have the Yoast SEO plugin active, the columns from the Products page are looking bad, especially the last ones. Solution: Since more columns need to share now the same space, you can easily make some of them go away by using the Screen Option button from the top right corner of the Products page. Here you can find a checkbox for each column of the page.
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