I work for a small company and we use Atlassian tools extensively. The majority of the team are engineering contributors who use Jira software and Confluence extensively. There is a smaller cohort (approximately 25% of the company) who are not familiar with the Atlassian stack and have expressed dissatisfaction with using it due to its unfamiliarity. My concern is that the new navigation may exacerbate this unless they are allowed to opt-out.
