I thought Jacobs did really well but he's a good boxer and fought a really good game plan, GGG fought quite a poor fight by comparison. The reach advantage was massive, and you heard Jacobs trainer every single round emphasising the importance of the jab. GGG did quite a poor job of working around that jab, but you did see with the 4th round knockdown, poor range control by Jacobs and before he knows it he's in trouble and once that happens GGG does the damage.
I do feel GGG perhaps was not in the mood for a demolition job because despite not really having the eat anything, he seemed unwilling to turn ask how much of a fighter Jacobs was. I mean an alternate way to look at the fight is GGG got into the right with a good boxer, was happy to box, and still won without really showcasing any of his headline skill set, which he undoubtedly possesses.
GGG is on the older side, I do hope the Canelo fight happens before we start to see a decline.