The biggest issues I have with JIRA have to do with it being one of the world's most inconsistent, unintuitive, and undiscoverable UX's possibly ever made. All manner of things are hidden in "..." menus, and any screen will have several such menus visible at once, but they're all different. It feels very much disjointed and like the UX is done in a deeply siloed process that considers only the most local region of the screen the user could be working in (or where a feature lives), and like no attempt is made to consider the UX as a whole.
It feels like using 15 different independent apps at once that just happen to be crammed into adjacent or overlapping screen real estate, and each one is a different lens with its own side effects that come from interacting with it. Some things are randomly modal and others aren't and require you to actually load an independent details screen. The only significant consistency to any of it is the fact that it all shares a somewhat common graphical style.
Despite having used JIRA for a decade or more, at no point do I ever feel like I know where I'll find something on the first try or know what's going to actually happen when I deviate even the slightest from the very, very narrow repeatable process groove I get into after much trial and error.
It feels like using 15 different independent apps at once that just happen to be crammed into adjacent or overlapping screen real estate, and each one is a different lens with its own side effects that come from interacting with it. Some things are randomly modal and others aren't and require you to actually load an independent details screen. The only significant consistency to any of it is the fact that it all shares a somewhat common graphical style.
Despite having used JIRA for a decade or more, at no point do I ever feel like I know where I'll find something on the first try or know what's going to actually happen when I deviate even the slightest from the very, very narrow repeatable process groove I get into after much trial and error.