Is it normal my husband always wants to play video games

Yeah thats not right, he should not be prioritising games over you and your child

Do you think he could be suffering from some postpartum depression? Men can have it to. I would definitely sit down with him, tell him how you are feeling and ask him if something else is going on besides just being tired. My husband loves to be outside “cleaning” (cutting grass, weedeating, clearing trees, cutting branches, whatever..) or building stuff. I have to remind him that while I know it energizes him and he loves it, I need time with him too, so he has to prioritize. I told him how lonely I was feeling and we decided he could cut back to an hour a night and he stuck to it. When he came in, we hung out. I’ve been super sick with baby 3, so I go to bed as soon as our two children do and he has been going outside every evening. I know it’s because he has been taking on a lot more children and house duties lately, so I haven’t said anything yet. Once I am back to myself, I plan to ask him to cut back a little again.

No that’s not normal. Some down time is normal but that seems extremely excessive. Just let him know how it makes you feel and come to a compromise on how much time is ok.