With the magic floaty keyboard, even long emails feel fine on iPad.
Unfortunately, Docs, Slides & Sheets are pretty terrible, and fall far short of the desktop experience. For those apps, a Chromebook would be a much better choice. If only they made Chromebooks with trackpads as good as Apple's laptops, or even as good as the magic floaty keyboard.
Sheets is terrible. Cannot use the magic keyboard to shift your active cell (ie click a cell, type = and use arrow keys to find the cell you want to reference.. it just quits the cell).
Gmail and Calendar are great. Drive is also sub-par in experience when compared to Dropbox (probably Box as well though I've not used it)
Oddly Sheets is the only one I like. It is good enough for most use cases and simpler and easier to use than Excel.
I've never even considered using Docs or Slides.
Some MSPs I work with make good money just converting businesses from Gsuite to Office 365. I don't use either platform personally or at my work, but I understand why Microsoft is eating the SaaS email & baseline office tools market.