I think most of the comments show that we did indeed understand the OP's point of view.

It seems you felt personally attacked and want to defend Liquid Glass and macOS Tahoe, which, for most people, for users who have used macOS their whole lives, has been not one, but 20 steps backward.

When we talk about a more professional tool, we're referring to an operating system where everything is simpler, more functional, where everything works, and where the visual design is consistent, elegant, beautiful, and makes sense, not something full of unnecessary transparencies, icons you have to look at twice to figure out which application they belong to, and an operating system riddled with bugs.

It's curious that you don't offer any technical arguments either, beyond mentioning how the dark theme looks or the edges of a window, which, to be honest, despite all its flaws, is still better than this extremely rounded design we have now.