> God only knows how much money they invested into the new GUI engine for all their platforms. It was a super expensive bet.

What are you basing these claims on?

Stop being so aggressive.

You can look at Apple’s own published consent regarding Liquid Glass development. It’s very evident that it was thoughtful and involved.

Topic of discussion was the price of developing and rolling back the new GUI, not how much thought Apple put in it.

The employees aren't thinking for free, making something "thoughtful and involved" is probably expensive, too.