Realistically though, even if you had succeeded in getting your friends to use Signal, wouldn’t you have the same social media problem as before? They’ll still be posting stories and you’d still be addicted to checking it.
I think it's much less addictive than Instagram. It's most likely only people you know, no garbage ads, no garbage "influencers".
Plus in my experience at least, people post stories much less often but obviously that varies.