No, next year. He will first be ineligible for U-25 (white jersey) in 2024.Now, the big question for me right now is; at which point will he stop automatically winning two jerseys whenever he wins the GC of a stage-race?
I'm guessing for races that have the BYR jersey be a U-23 competition, it could slowly start this year, providing they apply the "you're too old the year you turn 23" rule.