@jack @ai6yr I was actually a little bit shocked to learn that AOSP's own messages app is ancient and hasn't really been worked on in forever. You'd think LineageOS or one of those would have taken it up long ago. I'm under the impression Graphene has done some patches to it, but as far as I know they didn't submit any PRs or anything. (And I'm getting some bugs with it like not getting sound notifications from contacts configured specifically to make a sound, but then maybe that's fixed by now — I have an old version since my phone model is no longer supported and probably will have to move off Graphene soon.)

I guess it's still the only real FLOSS alternative. It may be worth extracting the apk from Graphene perhaps.