Explain this futher. How can you be sure than they didn't break for others before but worked for you?
My external drives work fine in macOS 12 but they don't work for you.
Maybe for others the external drivers were broken before 12 but macOS 12 made them work fot those people but for you and "others" have problems now?
See what I am saying the only people that complain are the people that have problems.
But that is important that is the competition, if the competition has bug free and no serious bugs then Apple is slacking off as you say. Apple and others have checklists of which to fix and QA takes security bugs first.
These people have problems with USB disconnecting on Windows but you don't have that. What I am trying to say different bugs effect different machines. Apple and MS will fixes bugs that effect a large pool of users.
Heres a person on a MS forum on USB problems on Windows 10, I never had this on my PC but this person does.