Vlad Sure, will do. It very well could be a Catalina issue, not sure how much Orion is intended to support users on macOS 10, but I'd figure not too much in the long-run given the audience (ordered the new M1 Pro a month ago and totally hyped for the long overdue hardware & OS upgrade to arrive soon 😁).
Re: pieterv's reply, I also originally thought it could be a feature rather than a bug because the exaggerated condensing effect does kinda look neat when quickly scrolling across a bunch of tabs; sorta makes it look like a bubble or magnifying glass overlay (GIF below). Although functionally, it can be a bit distracting and odd, at least the way it looks on my screen.
Seems like the selection/deselection of a tab triggers its width to scale and effects contained text as well, but at the end the text clipping & font dimensions bounces and corrects to take on its intended active/inactive look... I guess that's where the cause of the "ultra-condensed" view that we're unable to reproduce now lies and is just a result of giving that algorithm a very unique set of inputs/conditions?
Not sure if any scaling of the text itself was intended though so (absent original issue) here's what I'm seeing: