I love CDs more than most, and kinda hope they "come back" (though buying used ones for a few dollars each in the last couple years has been amazing, and I don't necessarily want those to go way up in price like used vinyl did!), but I'm not sure one year of a small increase in sales, when both Adele and Taylor Swift put out new albums, is sign of a trend.
More people probably are recognizing that renting their music from tech companies that don't actually care about music is a bad idea, and we've seen the increase in young people discovering the value of physical media, but CDs still don't have the "cool" factor of vinyl and probably never will. They're not as good for displaying. What were the numbers of people who bought vinyl who didn't even listen to it over the last couple years? I remember it being pretty staggering.
This recent
Rolling Stone article covers a lot of things I love about them (box sets, especially).
Meanwhile, I'll be working on convincing my partner that buying a CD player in the year of our Lord 2022 is not a waste of money.
(Also one of the biggest pluses of CDs over vinyl is that the margins are way bigger for most artists! But Ryley Walker touting and pushing them isn't really a movement yet apart from a very specific sub-section of Twitter, from what I can tell.)