Youngkin isn't doing anything DeSantis isn't doing right now; governing a state while supporting other races.
Neither man has made any comments hinting at higher office. Of course, neither man has flatly denied such ambitions either.
A Youngkin presidential bid, same for a DeSantis presidential bid right now, are nothing more than speculation from third parties.
I'd gladly vote for either man.
Youngkin pretty much bought the Republican convention by throwing money at pols/consultants to get endorsements/support.
He then lucked out that the Dems pushed the woke agenda so much that parents got mad and gave him an issue - prior to the Loudoun kerfluffel he was running on playing basketball and being a cook in college.