I mostly agree with you on this but JIRA tends to push the envelope in terms of unresponsiveness of its UX. As an IC I only really use it to create/update/search tickets but I find myself waiting a half to couple of seconds for certain flows, especially for finding old tickets.
Not quite the same as responsiveness but editing text fields in JIRA have a tendency of not saving in progress work if you accidentally escape out. Also hyperlinking between the visual and text mode is pretty annoying since you can easily forget which mode you’re in.
Honestly as I type these out there are more and more frustrations I can think of with JIRA. Will we ever move away? Not anytime soon. It integrates with everything and that’s hard to replace.
It’s still frustrating though.