Like the vertical tabs on big'ish screens.
I have the sidebar always open with bookmarks so this implentation of a sidebar ('Tab Center') next to but obscured by another sidebar (bookmarks) is ergonomically poor.
On big'ish screens, much nicer to have bookmarks sidebar open on the left & 'tab center' pinned on the right. Please god make this an option?
Why this obsession with everything jammed over on the extreme LEFT of screens?