This doesnt matter, when he has been going from Feb to end of Tour with no real break.But he could probably win the Vuelta in preparation for the WCRR mode.
Vingegaard won't be there for sure, and it is unthinkable that Seixas may do 2 GT in one season at his age.
Evanepoel and Lipowitz are not supposed to do the Vuelta either
Who else may be there to challenge him?
As it is not about the race days he has done. He has either been training very hard, racing very hard races and then now... started to prepare for the Tour. Romandie being the start of this. He will then do a training block in May and get ready for Suisse. Tour.
It is not about who will potentially be at the Vuelta. That really doesnt matter either.
He likely take and need the break to show up for the last part of the season.
