This enables you to have the ultimate usability: per use-case, context-sensitive
UI instead of compromising for integrating everything.

they will be happily switching between the apps.

They share a SSO and the same UI paradigmas, but that is easy. As long as you
give your users a "home screen" as a starting point,

Which is great, because I can now develop the features of a "suite" as
independent products, with their own release cycles.

They expect simple screens that are self-explanatory and serve one simple goal.

But today, users in general are no longer willing to invest time into learning a
new program and its UI features.

well worth investing in, because it was there to improve your day-to-day work,
and you would accept some of its quirks and awkward UI.

Where maybe 10 years back, users would invest time to "learn" a new user
interface and functionality because software was seen as something