10 years of update for an OS is not even that bad, the problem is that there is perfectly working hardware out there that will not work with windows 11. (Unless TPU2.0 is circumvented)
I don't have any Intel MacBook to test it out on, but is Intel PTT permanently disabled on them? Almost all Intel CPUs from somewhere in 2014 and later has TPM 2.0 support as far as I'm aware.
I recently sold my old computer with a i7-5820K. It's from 2014, but with 6 cores, 12 threads and 4 Ghz it is still fast enough for video and photo editing, and playing CPU intensive games like GTA or Red Dead Redemption 2. But can't run windows 11 because of TPM.