windows 11 partitioning

 And if we can INSTALL Windows 11 with separated partitions? for example C to Windows, page file, system and native apps, and D to any other data and temp data., (like an Android/IOS)? For better backup, management and security?

Can be done, partially... and you need to change registry after windows install:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion (program files)
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList (user data)