All right I decided to grab my secondary laptop with smaller screen and take screenshots of both versions to prove that the new version takes up more space and is unpleasant to use. Wall of text at the end of this post.
The new version takes more space and feels "crowded" even when it's a fresh-ish install:
The difference doesn't look that big of a deal when comparing those static screenshots but in actual use it is a real difference. This must change.
I'm currently reverting to old version just so I can browse the internet which is not something a user should have to do to get a good browsing experience. If this doesn't get fixed I must go for another browser even though resaving all my bookmarks, saved passwords and extensions and stuff must be re-entered. It takes time and I would rather use that time to do other stuff.
Also having those sidebar icons in three different places? Fire the guy who thought it would make a good user experience. Seriously.