@marc0269
Windows 11 is still in Beta and will be for months to come -- so HP is not providing any information on model compatibility at this time.
You need to know EVERYTHING that your system lacks for Windows 11, not just TPM or what the MS tool tells you.
Here is a link to a third-party tool that will check all the currently known requirements for Windows 11 and tell you what fails on your PC: https://github.com/rcmaehl/WhyNotWin11/releases
I am a volunteer and I do not work for, nor represent, HP