NOBODY? There are people whose entire day is spent using just Teams, Outlook and a browser. Please explain why they cannot do that on an iPad.
What kind of work is that?
Browser... sure, you can use it on iPad, but it's more an iOS experience than proper macOS Safari, especially if you want to work efficiently. Different windows, multiple tabs, maybe two desktops. Sure, you can do this on an iPad, but you could also do it on an iPhone with a wireless keyboard. The argument here is - is it really optimal?