In the Twitter space he also said this in (Yes, the Mario Lawful one). He said that Bitcoin, Ethereal and DOGE will all "make it" and literally laughed at all the other crypto tokens that others asked him about.
I have not heard Elon speak in this way about Bitcoin in some time. I was shocked. I'm not going to say I trust him, I know DOGE will be the one he rallies behind, but someone seems to be talking some sense into him about the reality of things.
I can see him rolling out BTC and DOGE at twitter... ETH I have no clue what he thinks could be the use. He avoided answering any direct questions about anything other than BTC or DOGE. I feel like he just lumped it in via process of association (specifically he comment came when FTT and SOL where were being discussed).