Want a simple, easy-to-use OS? Then choose Simple OS! You are able to make windows. You can also cascade windows to the left or right. This makes split view possible. It looks and works similar to a cross between Windows 3.0 and Windows 1.0. Have fun!
PS: BestPenguin Point/6.0 (https://point.ebp11.repl.co and https://bestpenguin-6.ebp11.repl.co) programs may come onto this soon. It runs on BP-DOS, E11's free kernel. For more information, go to https://bpdos.ebp11.repl.co . You are free to copy the source code into your own OSes.