https://bugzilla.kernel.org/show_bug.cgi?id=211277
--- Comment #9 from kolAflash (kolAflash@kolahilft.de) --- I'm on Linux-5.7 now since 2021-01-26. And I woke up the notebook at least once a day since then. So it's clearly a regression in the kernel somewhere between 5.7 and 5.10 and probably between 5.7 and 5.8.
And it's definitely not a BIOS issue, because I changed anything about the BIOS since the problem appeared last time with Kernel-5.10.
Regards, kolAflash