He did none of the chasing himself. The only reason he managed to get on the podium, was because everybody already knew Pogacar was gone, hence so was the incentive. If there is no Pogacar, no Evenepoel, i doubt it would become easier for him, because then guys like Carapaz, Van Gils, Vlasov, Vansevenant, Bardet, Pidcock... they all know they can and need to get rid of him because they can't be taking him to the finish.
But this is in a universe where Evenepoel and Pogacar don't compete or crash out both. He literally has 0 chance against them.