iPhone 12 Mini from official reseller with zero battery from the box - is it bad for the phone?

Hi,

Recently I’ve got an iPhone 12 Mini from official reseller brand new in the box, not refurbished or demo. As it could be expected, the battery from the box was zero (it has been lying in the warehouse for quite some time and I understand that batteries naturally discharge over time). I’ve checked max capacity in settings and it’s at 100%. Although, I’m worried if the fact that the battery was at zero for quite some time has deteriorated its capacity.

Please let me know if my concerns are true and whether I should do anything. Thanks!