MBA M2 Battery Health

Hi there.

I've recently got a MacBook Air M2 (16GB / 1TB in December 2022).

Battery was indicating 104% health.

I understand that after some time of use, it'll drop to 100%.

But... after just 6 months and only 42 cycles, it's already at 99%.

If I compare with my iPhone 13 Pro Max, which is 19 months old and still at 100% health, it makes me think whether this is "normal" on a Mac or I have some battery issue.

I ask you people to help - Mac is still covered, warrant expires on December 2023.

Screenshots show the figures.

Thanks a lot for your help.