In my opinion to say bitcoin is better than digital gold then all bitcoin owners must make a profit, and as we know that bitcoin fluctuations are very high so sometimes it makes people stressed, I have a friend who sold a car worth $ 12k then invested in bitcoin and when in 2017 the price skyrocketing, he was able to get a profit of almost 300% and now he is still active in daily trading.
its from the perspective of investment indeed bitcoin has always been growing really well when we invest in it, from over a decade its always reaching all time high and bitcoin doing it consistently.
i don't think gold can compete in that field, its always the upperhand that bitcoin got when it comes to the return rate of investment.
not to mention the fact that investing with bitcoin is really easy, you could differentiate authenticity of bitcoin by simply owning one in the main blockchain.
meanwhile with gold, even digital ones, its up to the company whether you gonna get real gold or not, after all who knows if the company doesn't even own gold at all.
thats why im skeptic when it comes to digital gold.