@utf_7 @film_girl I am used to custom ROMs, but they're not going to be mainstream unless we keep on this path for decades.
As Google is going to restrict sideloading on commercial Android, this is concerning because group safety like the one addressed by ICE Block / Red Dot is not going to work if only people on Graphene OS or-the-like can install the app.
At least you can sideload on Android. Unfortunately, Red Dot doesn't have a direct link to the APK on their website https://www.red-dot.app/ ; in fact they still have the links to the app stores, so hopefully they'll fix that.