I have followed past solutions, but for me they have not worked.
I am now on my 4th re-installation of Openhabian on a Pi4 8Gb and have tried 2 new 32Gb SD cards.
Here is my setup:
From your description and screenshots I do not fully which actions are triggered by your manual actions.
But in case you haven’t been acting manually at 00:58:51 and this problem happens every night at the same time then I would assume that it could be caused by the nightly zram sync that is mentioned in teh screenshot.