Well the official system requirements for Windows 11 make a lot of perfectly good systems non-upgradable
1) https://www.zdnet.com/article/apple-has-literally-extracted-... 2) https://duckduckgo.com/?q=1000kg+in+lb 3) https://images.apple.com/environment/pdf/Apple_Environmental...
The more obnoxious thing is they're not even dividing by the precise divider, as seen on the DDG link in my original reply.
Running a system, especially portable or critical without fTPM is not wise, more so due to Bitlocker security enhancements with TPM available.