I'm gonna let the anons in on a little secret about how the woman brain works and how to bypass this issue:

Stop holding back. Literally just be fully autistic about the shit.
Woman want you to be passionate about your hobbies or have interesting hobbies, or both.

If you are shy about your love of vidya, and she sees games with hundreds, thousands of hours, it evokes an image in her mind that is akin to a fat old boomer channel surfing his free time away.

If you start telling her about how you hate modern monetization, how game design has changed and simplified for the worst, the merits of running old games on hardware on a CRT, the artistic merits of your favorite games and why you love them so much, etc etc etc her mind will go from "Guys who game are gross" to "Guys who game are gross but not you, the way you engage with it is very different".

The one group this doesn't work for is movies because cinephiles are memed by women and 100% the cinephile is going to make her sit through too many movies she didn't want to see. Don't try to force her into your hobby, if she asks of her own volition give her the tools to get started.