We undertook a migration from not-JIRA to JIRA. Our previous issue tracker would let us have the same task in different columns on multiple boards. You could do your investigation, post your comment, reassign to the reporter, and move it into your "waiting" column. Then they would move it into their "in progress" column, do their piece, and get back to you. A complex cross-org issue might show this cycle 5+ times.

In JIRA it is completely impossible. A task has one project and one status. You're lucky to have view and comment rights on another team's task, forget about change-status or reassign. An admin can "move" an issue but then it's gone from your own world.

The net result: the issue tracker is no longer a communications medium, but a paper trail for the bean-counters, where you laboriously log conversations and decisions that actually occurred by email or Slack. There will be a JIRA corresponding to any give issue, but reading the JIRA will not tell you the story anymore.