Greetings JennyHiggs,
I have some similar situations. Laptop and desktop which are more than capable of running W11, but one with a limiting CPU and the other with no physical TPM or BIOS support.
I've also built a few windows 11 VMS and frankly, am not overly impressed with it at this point. Nothing compelling there, or anything significant making me feel its something I've got to have.
As dmdilks pointed out, there are plenty of hacks available to get windows 11 installed on hardware MS deems as incompatible. How much time you might want to spend doing that is up to you. Your existing hardware will not support many of Windows 11's feature capabilities anyway, and there will not be any enhancements to your existing hardware, etc. My advice, if you want Windows 11, buy hardware that supports it. You've already received a 10 yr return on investment for your Z77.