The intative promises to be privacy-friendly with no tracking. Stating:
Your privacy is important. The WiFi4EU app ensures a private online experience with no tracking or data collection. Simply connect and enjoy free public Wi-Fi without concerns.
Source: https://digital-strategy.ec.europa.eu/en/policies/wifi4eu-citizens
Will be interesting to see how this spans and plays out in reality. Looks promising too, did a quick scan of their builtin permissions and trackers and looks good too. (Scanning tool is called Exodus)
The reason I posted this was becuase they posted about it themselves on LinkedIn recently, so I am assuming its still a WIP project. https://www.linkedin.com/posts/european-commission_wifi4eu-activity-7359136374895046656-oXYi