I believe what people mean when they say they want macOS on iPad is that they want the same OS stability on their iPad as they have on their Macs.
No matter how much we relent, iPadOS is just glorified iOS. Take for example: the Instagram app on iPad. Apple should seriously not allow such apps to be on the App Store if they don’t make it “for the iPad”… or maybe fix what the App Developers are not able to, if they are actually serious about iPadOS. It’s hard to believe a device that cost just as much as a laptop, has the same keyboard as a laptop and even an (next-gen) SoC of a laptop has to suffer because of the OS.