Sims 4 Keeps Crashing - Unknown Issue

JoySkit  the second crash is another one related to CPU Turbo Boost.  That's not the only possible cause, just the most common one.  It is absolutely not harmful to disable this setting, and you can reenable it whenever you want.  As for why Sims 4 is reacting badly to it now, that's not clear, but I started seeing the problem in the summer, not long after the game introduced DirectX 11 mode.

The first crash is a generic access violation without any useful details.  The third error is a crash of the graphics driver.  Since you've already updated the driver, the next step is a clean uninstall and reinstall, and in fact it's best to try this first since this particular error is so clear-cut, at least in terms of what exactly is happening.  (Why the driver crashes can vary, but it is in fact crashing.)  Here's how:

https://crinrict.com/blog/2019/02/clean-re-install-of-graphics-drivers-with-display-driver-uninstaller-ddu.html