I created an account on this forum just to comment on this thread. I can confirm this is still an issue on the newest versions of iPadOS and Obsidian (unless you fixed it in the insider build). In addition, when you hold the Cmd key, the commands you see are only some default commands. It’s clear that the whole keyboard shortcuts system is not integrated with the new functionalities of iPadOS 15.
It would be great if we could see the full list of shortcuts upon long-pressing Cmd, like in every other app. I suspect that fixing this would also fix the fact that some keyboard shortcuts aren’t working, as well.
Also, as can be seen on the screenshot, the keyboard shortcut row takes up a lot of space to itself. In other apps, it typically gets minimized and hovers over the bottom part of the screen. It would be lovely if you could fix this, too, as we’re losing a lot of screen estate on the small iPad screens right now…