Microsoft's statement on Windows 11 lists as "System Requirements":
System Requirements:
These are the basic requirements for installing Windows 11 on a PC. If your device does not meet these requirements, you may not be able to install Windows 11 on your device..
....
System firmware: Secure Boot capable
TPM: Trusted Platform Module (TPM) version 2.0
....
Does this mean Windows 11 can't be used unless these are present and enabled?