So - I fixed this, and I think it might work for you too.
I upgraded to Windows 11 and I can now throw everything at KSP 1 and it just takes it. No crashes for an hour and I just keep heaping more on it. Instances I had zero stability with just run now.
I looked at your logs and saw we had the same CPU and were both on Windows 10, and another user had this error and ultimately fixed it with a new build (maybe Windows 11?). This might have to do with the Processor Schedule Algorithm built into Windows, which was overhauled for the complexity of gen 12+ Intels.
Thank you for mentioning your hunch... I was about to put this down for good and I love this game!
Please report back if you are willing to swallow this fix. If it works for you as well, this would be good to have marked as FIXED for anyone else lurking.