My new mechanical keyboard randomly types double letters when I’m gaming

I just got a custom mechanical keyboard with Cherry MX Reds, and it’s been great for typing and general use. But while playing fast-paced games like Valorant or Apex Legends, sometimes it randomly doubles letters like "aa" or "ss" even though I only tapped once. It doesn’t happen all the time, but enough to mess up quick chat or commands. I’ve tried cleaning the keycaps and updating the keyboard firmware through the manufacturer’s app, but the issue persists. I’m using a Windows 10 PC connected via USB-C, and haven’t noticed this problem outside of gaming. I’d prefer not to switch to a different keyboard since I love the feel and layout. Has anyone seen this kind of weird double-typing only during gaming? Could it be a software conflict, like with my game or chat overlay, or is it more likely a hardware issue? Any tips on troubleshooting without voiding my warranty?