I’m a big fan of BTRFS, I use it in my desktop and laptop but I'd be curious if the compression is worth the battery & compute trade off. I’m not sure how much battery/compute is used day to day to decompress and compress files read and written. But I guess it depends on which is more valuable, battery or storage.
I don’t think it’s a mass exodus. However in situations like these I think it’s important to look at the rate of change. r*ddit is steadily getting worse, and Lemmy is steadily getting better. I don’t think there will be an immediate sea change, but hopefully there will be fits and starts in the right direction.