Yeah, Djokovic was obviously smart to exploit Stef's court positioning via abusive usage of drop shots. It paid out in the end as since the middle of the 4th set Stefanos didn't have legs anymore. He managed to somehow clutch out the 4th but was physically done in the fifth.
I still think his game plan was not perfect today. Firstly, he should be more offensive from the get-go and not let Djokovic engage him in the longer rallies the majority of which he lost. He should try to take the initiative earlier, take cuts at some 2nd serves even at the expense of more unforced errors. Playing like he did he was always going to lose, actually only thanks to his incredible clutchness in the 4th and 5th sets and some brainfarts from Djokovic he took it to 5. The other tactical mistake was giving Djokovic too many opportunities to play the angles in which Djokovic excels engaging with him in too many BH to BH rallies which was a losing game.
But, Stefanos is a good learner so I'm sure he'll eventually learn his lesson and get there.