Im on 20H0 or 20H1 and its worse! My brand new Asus just reboots all the time for now apparent reason. Thanks MS, yall are beginning to really suck!!!!!!!!!!!!!!!!!!!!!!!!
Perhaps this helps. Try to install the thunderbold drivers that came with your motherboard. Even if you do not use that feature. Microsoft does not see this as missing. But the missing drivers lead to a interupt/DMA conflict that causes strange behavior.
And if you use NVIDIA drivers, roll back to about 5 releases before current. Both Microsoft and current NVIDIA drivers gave shut-down problems and much more. I changend NVIDIA for AMD. Problems gone.