In a situation where a disk is rolling WITH slipping on the ground i.e velocity of centre of mass is greater than $r\omega$, is angular momentum conserved about a point on the ground.
What confuses me is that friction decelerates the disk to make $v_{com} = r\omega$ and in this process some velocity is lost so according to formula of angular momentum $L=mvr$,about a point on the ground $L$ decreases as $v$ decreases.
But since friction is also acting about a point on the ground, torque about a point on the ground is zero, so then how would angular momentum change.
edit:this question is about applying conservation of angular momentum in rolling with slipping.