I don’t think tabs make sense for Bear - it just doesn’t fit the UI “flow”. But for Panda (as a standalone editor) it makes perfect sense. And the team’s implementation of that thus far is quite nice.
What I do think could be helpful in Bear though would be some of the other “UI” aspects of Panda including:
A note header (with the note title). As it is now, Bear notes have no header. So if you have your main H1 (title) scrolled off the page, which of course is true for every long-ish note you write, then you have no idea which note you’re editing (if you had multiple Bear notes open, which is often the case).
With such a note header comes a draggable area by default. Today, if you have a Bear note with text scrolled near the top, then to move that window, you are essentially grabbing an area of the note with body copy. It is an awkward user experience, not to mention that a mouse click is often picked up as “oh you want to edit here” and not the expected “oh, you’re clicking here to drag the window”.
The ability to open notes without needing to look at your ENTIRE list of notes. As it is now in Bear, if you Shift-Cmd-F (to open “global find”), the Notes pane opens and you are presented with EVERY. SINGLE. NOTE. in your “vault”. I think some sort of “open” or “find” dialog/popup that allows the user to type in text and show only the found results (or create new page) would be quite nice. You get that by default with Panda because it uses basic file system features (e.g. Cmd-O). Granted, file system “open” and “find” not all that attractive, but it gets the job done. And you aren’t presented with all your notes - just the ones in whichever folder you’ve most recently worked in - which is another super helpful productivity thing.
So, long-winded way of saying I have stepped away from believing Bear should implement tabs but I do think there are several other UI aspects of Panda that would be super nice additions to Bear.