Yeah I can imagine trying to do it manually could get pretty tricky. I’ll look forward to the smart watch support (though I don’t own one, I might get one if others report it working well with GrapheneOS).
Edit: also one thing to try out if possible is to remove battery optimization from Google Play Services. Your device might be killing that, which stops counting the steps.
It seems it’s already set to not be optimized. It doesn’t seem to have access to the physical activity permission, but granting that permission didn’t seem to help. It still doesn’t count steps with the screen off.
No matter, thanks for all the ideas, I’ll just keep watching and see if others find a solution. I’ve subscribed to the Walkscape community so hopefully you’ll be posting updates there 🙂
I have one of these that I use for Pi-hole. I bought it as soon as they were available. Didn’t realise it was 2012, seemed earlier than that.