Why won't Windows 10 hibernate?

Question

Windows

Recently, Windows stopped going into hibernation. It happens like this: I press "hibernation", the screen goes blank, the hard drive seems to move, as it were, but when you press any key, the Windows login window opens (as after exiting hibernation).
Methods with disabling wake-up timers did not help.
Perhaps this has something to do with the fact that I recently installed Linux, but then, it seems to me, the problems would have arisen already at the exit from hibernation, and not at the entrance.