That is actually a really good point. I have Alcaraz favourite for singles despite this. You are correct though a deep run in the doubles for Alcaraz could distract him a bit and help Novak.
I do think Zverev is going to be a big problem too. Novak is likely is going to have to beat both if he makes semi final which will be tough. He’s a long way off that though and it’s round of 16 to focus on.
I expect Nadal and Alcaraz to go far in doubles. They looked good especially when Alcaraz settled more.
Alcaraz is way too fit to get troubled by some doubles action. At his age, stamina shouldn’t be a concern. He is firm fav for singles gold.
Though I back Djokovic, ofcourse.