@jtr I’ve been pretty conservative with my use of extensions. I’ve been using the Obsidian extension without issue. I tried the Apple Passwords extension and found it to be a bit cantankerous, but workable. In both cases, the extensions were directly developed by the parent company whose products I wanted to integrate with.
What really surprised me is that the extensions worked on both MacOS and on the IOS build of Orion.
For my own use, I have found that I actually prefer my vertical tabs NOT collapsing. I leave them open vertically. This has done a few things for me: I can see more tabs, I’m more likely to re-use tabs (reducing tab sprawl), and the vertical view acts like a weird (but useful) hybrid between a tab view and a favorites view.