I have had some type of iPad since they were introduced. It is not a Mac replacement for me, but I use my iPad Pro 10.5 quite extensively. However, there are two iOS features I do not use much, Slide Over and Split View. I don’t know why I do not use these features because they are super handy at times. This is the definitive article on how to use Slide Over and Split view on your iPad. Perhaps it will aid you in using this under used feature.