Feeling bad about screen time

My LO is 4 months old and I feel bad about how much screen time he gets. I always have the TV on because I need background noise and I’ve started putting the TV onto kid friendly shows while he’s in the living room with me when I’m working. I rotate him throughout his wake periods between his bouncy chair, jumper, and the floor. I give him toys when he’s in any of these things but he does occasionally stop and watch whatever’s on TV. I don’t position him directly in front of the TV but he can still see it. I do talk to him and sing to him throughout the day as well. I guess I’m just feeling bad because I know screens aren’t completely avoidable but while I’m trying to work it’s tough since it’s just me taking care of him.