So lets get back to the original topic. I really think it's a shame that Apple hasn't improved iPadOS in ways that do the iPad hardware justice. Maybe it is wrong though to expect the iPad to become like a traditional PC/Mac. This will never happen. Maybe we need to think different. The only problem I see is that for many people it's a luxury to have a laptop and an iPad and maybe a desktop computer. The iPad alone will not cut it, at least not for many typical computing tasks. It has gotten better but it still has ways to go.
There have been changes over the years though. Share sheet, multi-tasking/split-view, iCloud Drive then Files app, external storage support, Shortcuts, desktop Safari, mouse/trackpad support, etc. It's slow going but there's been progress.
I think the user experience would've suffered more if Apple had just dropped MacOS as-is on the iPad similar to Windows on the Surface.