Everyone on HN is no doubt sitting there nodding along sagely but there’s also a pretty good bet that 90% of us (nerdy, apparently in-the-know tech types) have done very little to think about cutting down on smartphone use. It’s the single biggest surveillance vector (a device that you carry everywhere that knows where you are and reports your habits into a data store we know pretty much nothing about!), but we all now assume - hilariously, in my opinion - that we “couldn’t live without our phones”.
Personally I think the battle is totally lost until people start actually thinking about the negative impact of these devices, both from a surveillance POV and a wellbeing one.