they say bitcoin is store of value where did the 200billion vanish ..they say bitcoin better than gold?

Great, so bitcoin is not store value at all.

Store value would be as stable as phsycial cash and precious metal like Gold. The value won't move like bitcoin where it goes up and down by 2-5K USD in very short period of time.
It's the perfect investment to make it grow over the time. That's the difference between the store value and ever growing investment. So you decdie now which one it is. :-)