I think you're comparing apples to orchards here.

I'll grant you, Unity has been a commercial standard that many large and good games have been made in, Godot hasn't. Godot has been used largely by solo creators or small teams which has limited the scope and detail of the artwork in Godot games thus far.

This begs the question: What's the best looking solo-developed Unity game?

Does that game include a lot of purchased/sourced assets? Should that count as "solo" developed then? Given the contents of Steam's catalog, by sheer volume of titles it seems that Unity is THE engine for creating low effort shit-tier asset flip "games" that are little more than a tutorial project file with a retail price. "Games made in Unity" is a LOT of rough to look for diamonds in.

Once you've found the best looking solo-developed Unity game, ask yourself this: Could this game be remade in Godot? Is Godot technically capable of running a game like this?

I'm also unconvinced that Godot is inherently a poor choice for larger development teams. It has built-in support for versioning systems such as Git, and its modular node-in-scene system mean that different team members could work on different components independently, then bring their work together as a whole. There's also that whole aspect where the Godot editor is itself a Godot "game" that runs in the Godot engine, which means it's possible for developers to create their own extensions to the editor using the same skills needed to make games.

Beyond that, much of the work on graphics--3D art, level design, character/creature design, rigging, animation--a lot of that is going to be done in an art package like Blender rather than Godot. And yes I would suggest Blender for the same reason I'd suggest Godot, because Adobe and Autodesk are also pulling the same kinds of enshitification that Unity is.

The real reason that Unity is the industry standard? Because it's what they teach in school. "Learn Unity because that's what they use in the industry."