Immersive experiences within public spaces offer significant educational and recreational potential, yet they remain unexplored in developing optimal experiences. The aim of this work is to pinpoint pertinent user experience elements crucial for user engagement in such interactions. Furthermore, this investigation establishes correlations between identified UX elements from two public installations in Brazil and strategies derived from the literature review for overcoming potential interaction obstacles encountered. The work analysis consists of codifying data from events attendees and staff teams performing 138 citations categorized into eleven UX aspects. Ultimately, the findings of this research point out strategies for empowering designers of immersive experiences to craft more enriching public journeys for all stakeholders involved in immersive public installations.