I have a pair of Altra Rivera 3 that have ~1500km. I am not sure there is any rule (except for marketing) saying you should change your shoes every x kms. I have a friend running ultras in >500km shoes because they are more comfortable and fit better.

IMO, you should change your shoes when they start to get uncomfortable

I ditched reddit and twitter. Intalled Lineage OS and use as many foss apps as I can. I am also moving all my Google cloud to Proton Drive

Sure, reducing the methane emissions of a few farms might lead to an increased consumption of meat. Which would annihilate the positive effect brought by such innovation.

I feel like this will cause a huge “rebound effect” (not sur if it’s the correct translation)

Just wondering, why not try swapping the battery? Worst case it breaks and you buy a new phone, best case you can keep your phone for a few months/years