My biggest annoyance is that I specifically bought a Windows 11 license, from the MS store, using my MS account. I did this because I assumed that if something went wrong, I would always be able to recover it. I could never 'lose' the key if it was tied to my account. Well unfortunately, MS screwed me. When I upgraded my PC I was apparently supposed to transfer the license before deleting the old PC from my account.…
I learned that there are two ways of buying a Windows 11 license. One way results in getting a traditional license key that can be reliably transferred, and the other way (tying the license to your Microsoft account) risks losing your license. :( I'm very careful to only buy licenses the former way, now.