The crash points to amdkmdag.sys, which is part of the AMD graphics driver, and it occurred while RobloxPlayerBeta was running. Since you’ve already reinstalled the graphics driver using the DDU tool, I recommend trying a slightly older, stable version of the AMD driver to see if the issue persists.
Additionally, please check whether the system remains stable when Roblox is not running, as this will help confirm whether the crashes are directly related to the graphics workload.