This will be the greatest ad for grapheneos imaginable. Practically the entire enthusiast userbase for android is here for some reason downstream of the ability to sideload. I can see this 10xing grapheneos/lineageos over the next few years. My prediction is it won't overtake android but it'll be too big to ignore (multiple % market share) and force android to take android closed source. This causes forces graphene and lineage and whatever remaining open source OS'es there are to band together and fork off that latest android version. The real question is whether Google then makes a breaking change to android so play store apks no longer work without them.