7 General suggestions to Windows and its Apps

One of the reasons I wrote these was because I saw some posts online of people saying "I hate rounded corners in Windows 11" and other preferences for classical design choices. I personally love the idea of a more modern Windows and I wish Microsoft worked more on it, but seeing those posts make me ponder how difficult it would  be to cater everyone's preferences, especially if they are this polarizing. That's why having a single powerful code/base for Windows with choices of modern/classic interfaces would be crucial for an overall great experience to users.

Therefore, Instead of forcing a design language on everyone, why not let the user decide their own experience? I'm curious to hear the opinion of experienced users here, does anyone else here feel that the current 'one-size-fits-all' approach is what’s actually holding Fluent Design back from being fully embraced?(Most people agree that Microsoft hasn't fully embraced and applied Fluent Design throughout the Windows system). Since Microsoft needs to keep an impossible balance between modern and older designs, could it be one of the reasons the Fluent Design isn't fully embraced?