is there a free battery replacement being offered for macbook p

There are two replacement programs that apply to specific models/years.

Apple Service Programs - Apple Support

Else, Apple charges $129-199 to replace a battery, depending on model.

Mac Repair - Official Apple Support

There is in some cases: read this https://support.apple.com/en-us/HT212163

Is this a manufacturing issue or was it caused by daily use?