Have people looked at the numbers? Chromeos and Linux have swapped, and if you include the unknown OS which are most likely Windows behind a corporate proxy it is back up to 70% of the market. In addition, the number of sites statcounter pulls from us dropped in half in the last three years if that matters.
We need to get back to apps rather than webapps. The hardware compatibility issues of the past are basically no longer here, and there are three major OS types two of which can use each other's apps.
I've found people want local software and access. This is a major reason why people like mobile more now than desktops outside of the obvious of having it in their pocket. A mobile app gives you more of a private feel than going to website and entering your info. In addition to an extent it is kept local first, due to sync issues.
Chromebooks need to die, we need to get back to native apps. Look with Windows we have msix, with Linux we have flatpack, etc .. Storage is cheap, and our devices are powerful. Let's use that power
We need more things like this. I know people don't like Windows Server because it is not open source, but it is simple to use and get up and running. Also, user management is easy.
All government systems should be on-prem, and secured by proper personnel. None of the data should be in a cloud providers hands, even by their own country's providers. There needs to be a separation between business and government infrastructure.