It recently came to my attention that the Jira UI I see is somewhat different from the UI my manager sees. Apparently, there was some sort of "new UI" that was rolled out a few years back. For example, here is a question related to it: https://community.atlassian.com/t5/Jira-questions/Switching-to-the-new-Jira-UI/qaq-p/659305
Recipe provided there is no longer relevant, i.e. there is no "New Jira Issue View". Moreover, I failed to found any UI-related settings.
So, in effect, my manager has access to a number of UI features (different filtering fields, for example), that I don't have access to. This presents a problem since I can't perform my duties when it comes to modifying such UI elements.
How can this be resolved?