Your question implies the answer. It's probably not a problem that's worth solving. The industry found the most cost optimal way of sizing stuff that works for most people at the desired price and the rest is either served through misfits, alterations or boutiques. Clothing is not some niche forgotten industry where most obvious opportunities still exist.
I don't care when somebody doesn't like aesthetics or look and feel of a new theme. It is subjective. Giving people an option to turn it off is kind. But Liquid Glass is usability terror. Just bring up the onscreen controls when you are playing video and compare that with what it was before. What is incredibly disappointing is people like you who defends new things just because they are new without paying any attention to usability, ergonomics or -sadly- performance. There is nothing good about Liquid Glass. Half of this site could just be a bot complaining.