Usual caveats: I'm a person on the Internet, going off only what you've posted and just your side of things, so can only say so much. I'm also exhausted so probably rambling.
I am the gamer in my relationship. Married for several years quite happily. I spent ~24 hours gaming this week. I will spend about 0 hours gaming next week doing what my wife wants.
"She still makes time for me when we play video games" <- this right here is concerning to me. Not criticizing you at all but that isn't the way. Just "sucking it up" will only lead to resentment and loneliness and fighting. Ask me how I know. If she's only making time for you in her hobbies, that's not really making time for you, which is why you're feeling unfulfilled and asking on the Internet.
A relationship is entirely about balance. If you have hobbies and interests outside of gaming there should be time for those. She should be willing to go to those because she cares about you. Not always, and not at the cost of her fulfillment, but some. Once a week I go out to dinner and then watch a dumb rom-com or something. I have zero interest in it but I do it because it makes her happy. Then at some time during the week we I take time to game and she brings me snacks because it makes me happy. It's a give and take and we're both happy
Have you tried communicating directly to her "I want to do this, and I want to do it with you. Please join me because this is a way I enjoy spending time with you"? What was her response to that? My wife and I learned early in our relationship that we need to just be clear and say those things. Being able to not only express what you'rr feeling but understand and listen to what your partner is feeling is the only way it will last. And really think about both what you're saying and what she is saying. Sometimes my wife and I still have to stop each and clarify what the other person actually means. You can't read her mind so don't assume you know what she means. Make sure. And visa versa.
It's not easy. But seriously. Go have a deep heart to heart and figure out where the disconnect is and what balance is needed to make the relationship work long term.