If you have to allocate resources to your host system, that’s resources your virtual machine cannot use. It is subpar. If you’re going to allocate your host the bare minimum resources, why not run the other operating system to begin with? You’re now missing out in performance in the complete opposite direction. The most straightforward solution still remains to run games on your host system. If you want to game on Linux, game on Linux. It’s easy enough nowadays, and what tinkering you may have to do will be a fantastic opportunity to get more comfortable with the DIY side of Linux.
I will be the first to admit that I am no expert on the topic of virtualization, as I have said in other comments already. However, this is a community, not an expert consultation, and I have used virtualization to varying degrees of success for various different tasks over the years, all of which has culminated in my opinion that it’s best not to use virtualization to game unless you’re really intent on running a game that cannot under any circumstances run in Linux, such as Valorant. To follow, if that is your use case I encourage picking up an extra drive (storage is incredibly cheap) and running a dual boot. You’re free to disagree and provide reasoning why I’m wrong, but calling my statement “completely uneducated” is disingenuous at best.
EDIT: I concede on my word choice, it’s not “subpar .” I’m certain you can achieve average or even above average performance in a VM with the right set up. The word I’m looking for is “suboptimal.” My apologies.