Question about Samsung Book Cover Keyboard

I cannot answer this question completely as I am only a user. This keyboard Samsung Book Cover Keyboard (CH, Galaxy Tab S7 11.0 (2020), Galaxy Tab S8), is fully compatible with my tablet S7 or the S8. There are other variants that are also compatible, "MagoFeliz Illuminated Keyboard with PU Cover and Touchpad" (Amazon), also compatible is the keyboard Samsung Book Cover Keyboard Slim EF-DT630 for the Tablet S7. It seems essential to me that these are 11" tablets, so that the cover that comes with the keyboard closes/ fits neatly. Some of the other tablet models are larger than 11". I would always recommend this Samsung Book Cover Keyboard case, because it is lighter, more precise and faster, easier to handle than the other variants, but does not protect the edges of the tablet as well. The "MagoFeliz" is very suitable if you work a lot in the semi-dark, dark and it protects the edges of the tablet best. However, it is the heaviest book-cover keyboard for 11" tablets.