I've used every variation of Mac OS on multiple machines and rarely encountered critical bugs in day-to-day usage. Currently running 12.5.1 on two machines, and it is far from 'buggy & fragile' I always do a clean install for Major OS upgrades and run the maintenance app Cocktail before any point upgrade. I have had a couple of odd bug reports replied to with thanks, that have been fixed.
Bugs, as described by Nermal, are so convoluted and edge case that it's no wonder they are not fixed. However, I agree that Apple's response is odd.
Overall though Monterey, for me and the many users I know personally, is way more usable, stable and accessible than any variety of Windows or Linux, the Mac hardware is superior and IMHO, the angst and anger expressed in this thread is way beyond reasonable