First the Maximum operating Temperature for your Ryzen is 95C.
Plus the AMD Wraith Stealth is the weakest CPU Cooler of all the Wraith CPU Coolers even though it should be adequate enough for your processor for normal computer use.
Make sure the Wraith is properly installed and it is tight and even on the processor and there is no Air flow obstruction to the CPU Cooler fan.
Also a warm or hot room temperature can make your processor run hotter than in a cool room.
I suggest you purchase a 3rd party CPU Cooler with a TDP of at least 125 watts for your processor.