Both Android and Windows optimize for size, and that's where almost all users are. Imo we should try and use consistent optimization flags everywhere. pcc tried making mac/linux use the android flags before, but it regressed perf a bit. pcc might have a link to the actual numbers.

If someone's motivated, going through the regressions, seeing which of them we could live with, and which we should work on (by rewriting code, enabling o2 for small targets, etc -- which would speed up things on android) and then trying again would be a great project.

(Windows and Android probably use slightly different gn flags too and should eventually match, but they at least agree on the basic flag setup iirc that we should generally prefer size except for hot code.)