

There are leaked emails from Google (from many years ago) where it was proposed to purposely degrade search quality to increase ad clicks. While some at Google responded with dismay as this, it is not a great leap to assume that this faction eventually won and they did in fact deliberately do that. Advertising is Google’s main revenue source, they are clearly motivated to do so.
I don’t think they are the same category of thing. Ocean is a design system. Breeze is a theme.
Edit: now I’m less sure. This seemed to say it is both a style and a “design system” which I took to mean a technical mechanism for styles, but now i’m less clear what they mean.