Are the foot rest necessary.

There is a Graco car seat that has a foot rest, I’m curious is that useful on the car seats. I’m a new parent and I’m researching car seats. I’ve went to stores and narrowed down my search my softness of the fabric and also by safety from company website and what the car seat made of. I’ll attach a pic of car seat.

This foot rest piece according to company website can also be used in forward facing.