As I have said often, there are many enterprise apps (specifically in the finance, insurance, sales, and related industries) that are written specifically for iOS/iPadOs (which user interfaces that are optimized for iPads of all sizes) that are not available on desktop operating systems (including Windows and MacOS). And a lot of companies use programs like Blackberry Work to do authentication for apps that are installed on people's bring to office devices. For these types of jobs, iPads can be essential. They don't necessarily replace home computers / laptops - they are additive to them.