<h4>Those little popups may reveal location, device details, IP address, and more</h4> <p>More than 130 petitions seeking access to push notification metadata have been filed in US courts, according to a Washington Post investigation – a finding that underscores the lack of privacy protection available to users of mobile devices.…</p>
I’m running graphineos so i think i’m just not using push notifications. Not that i am sayng this doesn’t affect me indirectly.
Also
https://www.medianama.com/2023/12/223-signal-push-notifications-content-meredith-whittaker/
This applies to Matrix as well, where I believe push is fortunately optional.