OnePlus is going all in on mobile gaming again, and this time, it has released a controller to pair with its gaming smartphone. The company just built the Strix G15 controller, which is designed specifically for the new OnePlus Ace 6 Ultra. This is a snap-on attachment that wraps around the phone and turns it into a handheld console. What’s so cool about this controller? OnePlus The Strix G15 controller directly connects via a USB-C port and encloses the phone entirely, which brings a console-style grip. But what’s really notable is the new physical shoulder triggers, secondary buttons, and ergonomic…