In my opinion, the condition of the Golden Cross gives a signal that the price of bitcoin is in a strengthening trend so it has the potential to rise and this has started a few weeks ago. If the bitcoin price is in this condition, you can make a purchase. The bitcoin price increase will continue and the next resistance target is $65k.
But did we not also see several golden crosses already this year, last year and even in 2019? I have a feeling this indicator is no longer as useful as it used to be or at least maybe no longer sufficient to really look into Bitcoin.
Stock to flow works best because it is exactly what the Bitcoin market reflects. Supply available, supply coming and demand.