Yep, it's really Max and everyone else this season. Ferraris could have kept up some, but that team keeps making self-inflicted errors all too often. Mercedes has nowhere near the speed of the other 2 teams and they'll have to make some changes this offseason if they want to be contenders next season.
It's just a LARGE gap in power between the top 2 (RB & SF) to #3 (Mer). I think if Ferrari could pull their heads outta their butts, they could close the gap to RB.
For all of Merc's problems this season they are still a top 3 team despite the failures of W13. The W13 will likely be the 1st AMG F1 build to not win win a single race in the hybrid era, knocking Mercedes out of P1 on the Manufactures Championship since 2014.