Here's an experiment for prospective reviewers (👀 @viticci)…
With iPad on external display, side by side with macOS Tahoe, compare and contrast individual system apps between the two platforms. It's quite surprising just how close some of them are, in this release. The Contacts app is a good example, because it hasn't traditionally been a shared codebase. It is in some ways better on iPad than Mac, as it has collapsible sidebar sections and a quick jump alphabetical index. (Mac has more menus)