As a very long time user, I also feel similar to everyone in this thread. I feel like my beloved Webflow has yet again lost its way 
I don’t have much specific to add as they have described the issues. But I do encourage anyone feeling like this to make videos and try to articulate what specifically is wrong and any suggestions on what to fix.
In my limited exposure so far I agree with the color picker. I wish it was a hybrid of the old an new where the variable panel allowed us to curate colors but then pick them like we used to.
I also HATE that the undo buttons are hidden in a menu, I used these buttons regularly. Yes I know I can still use key commands but cmon, they space is there.
I also don’t like that the preview button is tiny and on the right. It really didn’t need to move.
So far those are my thoughts. I truly hope Webflow is listening. Thanks all!