2021 was a good year for Apple — iPad Pro with XDR display, M1 Pro/Max MacBook Pro, iMac 24”. 2022 has been good as well — I’ve had zero issues with iPadOS and iOS 16, M2 MacBook Air is a nice upgrade, and the iPhone 14 Pro Max is the finest phone that Apple has made.
Every single company on the planet has some unhappy employees. It may have little to do with the company — it could be that the employee is just naturally miserable, they don’t jive with the culture, or they are not suited for the job.
Regarding updates, not everyone upgrades every year. A person with an M1 iPad Pro may not upgrade to an M2, but a 2018/2020 iPad Pro owner might. For some, an M2 Mac might be their first entry into the M-based Mac lineup. The last few quarters have seen up to half of their revenue coming from users new to the Mac. So a particular update may seem small to you, but it may be big for someone else.