If you can enable tpm you can manually install Windows 11 even though it says the processor doesn't support it. It's really just bells and whistles at the moment though. Not really worth upgrading.
I got an 8 year old refurbished MacBook Pro as my first one to try it out and its still going strong. Ubuntu is a relatively user friend OS which is worth checking out.
Not sure if this will work using win update but i know it does using an iso from Microsoft.
Create a new text document.
Copy and paste the following 7 lines into it.
Then save it as win11tpmcheck.reg
It can be named whatever you want but the extension needs to be .reg this creates a registry file which will change settings to bypass the requirement checks before the install starts.
Once saved, double click it to install the registry settings, windows will ask if you are sure you want to continue, just say yes.
Install win 11
Upgraded back to windows 11 after er my headset stopped working, f knows what happened, just reinstalled windows 11 as I had windows 11 pro key and started working again .