I am wondering why reviews almost never mention screen aspect ratios. The screen aspect ratio is of a tablet makes a huge difference in its usability. The iPad Pro 12,9, for example, has an aspect ratio of about 1.33. This makes it very suitable for reading books and newspapers but not so good for musical scores and videos. By contrast, the Galaxy Tab S9 Ultra has an aspect ratio of 1.6. That's very good for watching videos in landscape but makes the tablet hardly usable and difficult to hold in portrait.
One could argue that the aspect ratio of tablets which are meant to be good allrounder should probably lie between 1.3 and 1.5. The sweet spot should probably be around 1.4, about the aspect ratio of A4 paper. Surface Pro devices have an aspect ratio of 1.5. Letter paper sheets have an aspect ratio of about 1,29.