The thing is, Djokovic was "going for broke" in that AO match vs. Alcaraz, because Djokovic was injured and couldn't do the open-stance backhand anymore.
So that is why he went for huge return of serves, to avoid playing rallies
If Djokovic is fit, he'll look to play rallies, and he's no longer better than Alcaraz or Sinner when the rallies are long.
And if Djokovic wasn't injured at the AO, the match would probably have been played like that 1st Set, which Alcaraz won.
I know Djokovic beat Alcaraz at the Olympics, but he never broke Alcaraz's serve, and Alcaraz had 8 break points on the Djokovic serve, so it wasn't clear that Djokovic was better than Alcaraz off the ground

But Djokovic won anyway because he handled the pressure of the Olympics better... which is no surprise, because its a very different type of pressure that Alcaraz had never faced before, and was even bigger because Alcaraz told the media that he's bringing a Gold medal home to Spain.
Bottom line, i feel its unlikely that Djokovic beats Alcaraz at a Slam, especially after seeing last year's Wimbledon Final which Alcaraz was 62 62 76(4) and because the AO was not a normal match, because Djokovic played a style that he probably won't ever play unless he's injured and is forced to...