alt Hacker News> Safari.... I dont know why this battery life argument keeps coming up because it is not the case. It hasn't been so for at least 5 - 6 years.
I mean, observably, this is still the case.
Now, luckily the M-series laptops have such insane battery life that it barely matters compared to before... but I can still observe about an hour of battery life difference between Safari and Chrome on an M2 Macbook Air (running Sequoia). Now, my battery life is still in the region of 7.5 hours, so even if it's a large difference it's not impacting my workday yet (though the battery is at 90% max design capacity from wear).
I know this, because there are days where I only use chrome, and days where I only use Safari, and I do roughly the same work on each of those days.
I suspect that the people making these claims that Safari is no longer the most battery efficient are not Apple users. It's quite easy to empirically validate which browsers are most efficient by looking at the average energy impact in Activity Monitor. Safari is the winner, Chrome/Brave are not far behind, and Firefox is the clear loser.