Just because he shared some meme, doesn't mean that he is still supporting doge. I understand that he likes to share memes, but if you just check his entire twitter, you will see that he shares more than one meme per day, and this is just another one of those that's it. I believe we are not going to see him stop sharing memes just because they have doge in them neither, if he is sharing all kinds of memes, then he is going to share doge picture ones too.
But he has never said a single thing about doge, not today, not yesterday, not for over a year. Which is why we should stop thinking everything as a sign, and price of doge went up a bit today, more than what bitcoin did, and I am sure this was related, but people are gullible if they are using this as a reason to buy.
Memes are the bread and butter of Twitter, especially for influencers. Especially for Musk, Trump, and so on!
But I do think he wouldn't do it if he didn't have some thoughts about it..