It's probably making a decent difference, yeah. But a lot of people don't use those settings. I never charge my phone to only 80%. I know it's an option, but it's just not enough charge for me.

And these folding phones get HOT AF. Know what kills battery? Heat. I've been on my current Flip for about a year and while the battery life has definitely never been stellar on these things, there are some days now where my battery doesn't last a full day's usage.