I actually thought the Ice Chips (Sugar going into labor) episode was the best, followed by the backstory of Tina arriving at The Beef. Those were by far the most interesting, dramatic, and character-focused episodes of the season. They give insight into why the situations and people are how they are.
You want to talk filler, I'd sooner accuse the first episode of that. And as much as I love Neil Fak, he and his brother were painfully overused. The guy is like a cherry on top - a fun single bite, but too many and you get an upset stomach. The "haunting" bit shouldn't have lasted more than half an episode. In the first two seasons, it would've been a one-off throwaway gag.
Most of this felt lackluster, I agree. Seems like the creators are trying to stretch this chapter over multiple seasons. I enjoyed watching every episode in the moment, but upon finishing the whole thing and realizing how little the plot actually moved, I can now spot the filler. When you don't stick the landing, the rough takeoff becomes obvious and less forgiveable.
I'm most curious to see what Sydney decides as that's a potential powder keg, given where Carmy is mentally. As for the review of the restaurant, which seemed like a huge pivot point this season, I really could not be bothered.
So all in all, I'm torn. It was enjoyable while watching, but the ending (or lack thereof) renders it ultimately unsatisfying. And I do fear that the creators are getting more concerned with atmospherics than actual substance.
As for what the chefs were saying in the last episode... they're just sharing what the work means to them. If no one cared at that level, fine dining wouldn't exist at all. Maybe that's not a big deal to most folks, but this is a show using chefs as a vehicle for its themes. And high-end chefs don't do what they do because, what the hell, someone's gotta do it. There are more stable, less stressful jobs you can take if that's your modus operandi. They do it because, like most artists, they care an inordinate amount about it.
Pizza and tacos are a bigger part of my life than fine dining will ever be, but every now and then it's cool to eat somewhere that's completely different, with unusual flavors and presentations. That's what those spaces exist for - special, rare occasions. And the folks working there want the experience to live up to that. In The Bear's case, Carmy is using the high-end side of the business to escape or overcome his past. But they still keep the sandwich service open during the day because it's important to the neighborhood and, let's be honest, probably keeps the high-end side afloat.
Now, Carmen obsessing over mere millimeters while plating food... I think that's more of a Carmen problem. Though I'm sure there are people like his old NY boss who think that does matter. The movie Whiplash comes to mind.