I'm a little concerned with this liquid glass UI revamp, but it's not because of the way it looks.
I have a hunch that all these new effects and animations will make the whole OS slower and harder to run on older devices.
I'm not concerned about my mac, as I have an M1 Ultra, but I'm afraid my iPhone 13 wouldn't cope well, since it already started to chug here and there.
Eventually I'll get a new iPhone (hopefully in the holidays), but I guess we shall see...