Bitcoin is much much more useful than Gold. I mean if it wasn't, there wouldn't be much reason for it to exist.
Gold has a little bit of its market value in its use in electronics. Gold has a lot of its market value in jewelry and other uses of it for aesthetic or ceremonial purposes. But I believe most gold is stored in vaults and used simply as a store of value. Bitcoin doesn't have the electronics and aesthetics/ceremonial uses like Gold does, it only has the monetary use. But Bitcoin is orders of magnitude better in its monetary use case than Gold is.
I like gold, especially in the form of necklaces and earrings because it adds to my aesthetic when wearing clothes on important days (weddings or other events)

. but do I make gold my long-term investment, the answer is no, I make bitcoin a long-term investment because bitcoin has a limited amount while gold has an unlimited amount, and if many countries are busy making bitcoin their currency back up then I am sure the price of gold will crumble to smithereens.
Your point about taxation is really interesting. I wonder if governments will eventually try to regulate BTC more heavily to prevent people from avoiding taxes. It's definitely something to keep an eye on. But for now, I'm excited to see where BTC goes and how it evolves as a store of value
in the topic that I once made, I touched on that, so the imposition of taxes on bitcoin holders for me has pros and cons because actually bitcoin was created not to be controlled by third parties, except for yourself. but each country has its own rules regarding bitcoin, some make it legal tender and some make it a commodity asset (as our country does).