Monero may not be as popular, but it certainly has its own user base. It is likely that over time, when there will be less financial freedom due to CBDC, coins that allow to remain confidential will rise again and become in demand, but for now, their fate is not enviable. In fact, the value of a coin is not a direct indicator of popularity. To understand this, it is necessary to check the number of daily transactions in the xmr network and compare with other altcoins.