Hello, OneNote and all productive apps from MS such as Teams or working via VPn on a virtual Windows desktop work perfectly. The XP-Pen is a normal Android tablet with an LED screen. The e-ink display is "just" a software trick - but it looks great for reading and taking notes.
It is supplied with a pen that fits into the recess on the front and holds magnetically. It has a permanently attached protective cover on the front with a recess for the pen. The back of the pad is not protected, so there is no case.