The answer to your question is not simple because there are many factors involved. Silver, gold or even crypto's are some sort of insurance against super inflation, monetary reset or strong devaluation of your currency (which is not the same as money).
It is my opinion that having 10-15% of your equity's in silver and gold is some kind of benchmark. But that is my opinion and can be completely different for you or an other.
By the way, you have an impressive stack!
Thanks for the visit and comment @rolf.bakker .