Microservices quite likely, but I'd expect browsers to get ~zero benefit from KSM; aren't browsers all thin-copy forked from a single process anyways? And yes

Microservices quite likely, but I'd expect browsers to get ~zero benefit from KSM; aren't browsers all thin-copy forked from a single process anyways? And yes I sort of agree with swapping unused stuff so you have more room for cache, but that's only good for unused stuff; if you swap the programs you're actually running - even just zram swap - you're going to hurt performance.