Hi Jack,
Your minidump files indicate a driver associated to your Intel Processor is causing the crashes.
Go to the support page for your MPG Z390 GAMING PRO CARBON Motherboard on the manufacturers website, then from there, download and install the version of Chipset drivers they recommend and while there, check for any BIOS update that may need to be installed
if you are overclocking your processor, stop that, if there is an XMP profile set on your RAM in BIOS, disable that, set it to default.
Wait to see if your system stabilizes.