lol, since you know how to navigate to those settings better than I do ... I'm guessing they didn't correct your problem.
Sleep/Hibernate functions can be broken if you've deleted the little "reserved" partition WinOS always creates for itself. If you did deliberately delete this partition then there's no way to repair it (that I know of) except for wiping the drive then clean OS reinstall. If you didn't deliberately delete this partition then this isn't a relevant issue here, lol.
The ASUS support website for your ASUS machine are the place to go for ASUS-specific software. But the latest-and-greatest versions of actual device drivers are always found at the hardware manufacturers' websites - Nvidia, Intel, AMD, ASMedia, etc. The ASUS sites aren't continuously updated to keep up with everything developed outside ASUS. Microsoft's Windows Update sites are more on the ball than ASUS for these things but they're also always a version or two behind, they don't offer Betas or anything else which hasn't been around long enough to be tested and proven for their WHQL certification.
Agreed, upgrading to newer GPU driver version (or rolling back to older GPU driver version) is the most common fix for these things. But it doesn't always work, and there's little you can do when you're stuck with no options other than a bad driver except wait until they release a better one.
You might have a hanging process which crashes or times out during graceful shutdown operation ... you could observe how the machine shuts down while Task Manager is open, or comb through the Taskmon/Perfmon logs ... but this won't reliably report all possible problems.
https://windowsreport.com/windows-10-black-screen-sleep-fix/
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