Windows 10 Dell laptop is starting to refuse being hibernated

I always hibernated my Windows 10 Dell laptop, but as of 30.07.2025 its screen goes black and it seems that hibernation is taking long, but as soon as I touch one key, the lock screen appears and no hibernation has happened. Why? I tried everything from https://learn.microsoft.com/en-us/answers/questions/3834357/my-computer-will-not-hibernate-anymore-(it-turns-s?forum=windows-all referrer=answers: I disabled Fast Sleep option; I disabled any wake-up calls in any regime in any Dell power plan, including the active one; there is no meaningful Windows Event log entry about preventing hibernate. A

Question by TomR on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.