One of your minidumps indicates the driver "amdkmdag.sys" as the cause of the crash. This driver belongs to your AMD graphics card.
Download the latest driver for your graphics card from the AMD website. Then use the free DDU tool to remove the current driver. Then install the latest driver using the installer you downloaded.
DDU: https://www.guru3d.com/files-details/display-dr...
AMD driver download: https://www.amd.com/en/support
See if the system will work stable after this.
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