I have been 100% on my iPad Pro since 2018. The same issues you mention irritate me as well. However, the 2020 version (I finally replaced my 2015 iPad Pro) is pretty nice. Add in the rumors that some of the Pro apps are coming to iPad and you have a killer machine.
While splitview and slide-over are nice, the iPad really needs full support for an external monitor beyond making it up to the apps developers. If Apple adds that, they hit the nail on the head.
(iPad Pro 2020, 1 TB storage and the Magic Keyboard).