Why would you peoples want to run win11 without TPM ? Some softwares will not work properly.
Without TPM, it's better to stay on win10. Nice piece of information though.
TPM is another issue. Building a bootable Extended version of Windows 11 is to get the OS installed on an otherwise perfectly functioning machine.
You could have a sixth or seventh generation Intel CPU with TPM 2.0. What do you do then? Appreciatively, Microsoft has documented how to bypass these checks, naturally with fair warning, to install and run Windows 11 on unsupported machines.
The sole purpose of bypassing the hardware checks at the point of installation, is only to get you through the door. Whether TPM is enabled and used later on, would then be up to the user.
And during an Extended installation, Windows 11 will still detect the TPM, if it is turned on, take ownership of it and use it. In some cases, the TPM would only need to cleared (reset) first at the point before a clean installation.
There are inherent benefits of enabling TPM, be it on Windows 10 or 11, such as storing encryption certificates from an organisation's MS Exchange or Adobe server for email encryption or signed PDFs, etc.