No, they do not, and you just make yourself look like a lying scammer every time you post nonsense like this.  If I have a gold or silver coin in my hand and want to buy my neighbor's lawnmower, the transaction is completed and done involving only two parties.  If I want to buy my neighbor's lawnmower using bitcoin, I have to ask permission to a centralized miner if he will allow my transaction to take place at all or if he will blacklist my non-fungible token, then pay him an extortion fee to do the transaction.  There are more than two parties involved in the bitcoin transaction because bitcoin has built-in middlemen.

It doesn't matter how fucking stupid you are, or how much bitcoin propaganda and cultist koolaid you have drank from people like Andreas Antonoplous, you cannot even fool a 10 year old with your lies and claim there are only two parties involved in that bitcoin transaction.  There's technically not just three people, but even more than three in the bitcoin transaction because it requires nodes behaving in a manner conducive to your wants and such as well.  So the lower bound of people involved in a bitcoin transaction is three, but the upper bound is much higher, aka bitcoin has a metric fuck ton of counterparty risk and middlemen while metals don't.