Liquid Glass feels like one of those tacky themes you’d download to a computer or Android phone, run for 10 minutes, then delete. I’m not some anti-change guy, I loved the flat UI when it came out, it felt sleek and modern yet professional and unpretentious.
It’s not the end of the world or anything, I don’t hate it, but my phone interface feels childish now where it didn’t before.
But it didn’t replace a particularly good UI that inspired pretty much every OS and website that came after it, and people still call XP a Fisher Price UI. My point is that successive UIs should be an improvement, this is a downgrade, it’s just change for the sake of change. It’s somewhere between the original iPhone UI and the flat one.