UI3 feels incomplete. There are so many quality of life features and ease of use benefits that UI2 provides that were taken away in UI3.
The UI3 experience, especially for people who have been using UI2, feels like a significant downgrade to the user experience.
UI elements are more difficult to see and understand in UI3, like the layers panel - these new icons are awful, and it's more challenging to collapse panels with the new way the layers panel functions, which is very annoying.
There are fewer helpful dialogs (example: UI2 says “Exporting” when it’s processing the export of images. UI3 just hangs there, no dialog, and it appears like it crashed...This is a downgrade to the user experience...Why was this ever changed?).
In UI2, you can hover your mouse over any measurement setting, click it, and use your mouse to increase or decrease the value. In UI3, this interaction is buggy about 80% of the time I try to use it, and it infuriates the hell out of me.
I feel like I’m relearning how to use this software from scratch. What was the point of this UI update? Seriously, this is a huge blunder.
I can go on. There are still bugs in UI2 that were never fixed for UI3, like the way child instances of a component may spaz out and get huge if you try to alter the settings while it has an auto layout applied to it. Please fix these problems before changing the UI.
PLEASE, Figma, I urge you, as someone who loves your software and uses it literally every day, DO NOT FORCE UI3 on us.