there is no doubt that Libra is a shitcoin because it is centralized and private so it also betrays privacy of its users but i have to say these two things you mentioned are NOT features of a cryptocurrency.
simply put a cryptocurrency is a currency that is based on cryptography and the blockchain technology. it can be private and centralized like Libra, Venezuela's el Petro, Indian government's coin (i don't know the name), Iranian government coin (doesn't have a name yet), JPMorgan coin,... or it can be decentralized with high privacy but not anonymity like bitcoin or decentralized with high anonymity like Monero.

the fact is that all of these others are also cryptocurrencies but they are shitty because of the features or lack of them.