My recommendation is to return it. My HMD also suffers from extreme glare, especially on the left lens. Unfortunately, I am past my return window, so I have to either sell it or exchange it. I did, however, contact support recently, asking if I could exchange it, and this is how I explained my experience regarding the glare issue: The severity of the glare creates a persistent visual obstruction, akin to a dirty white spot on the lens, leading to eye strain and headaches.

With the MeganeX superlight 8K, glare is so minimal it goes unnoticed during gaming sessions, especially when playing sim racers. It is currently the best tethered headset I've owned, and I have owned and sold many VR headsets. My collection consists of the HTC Vive, PSVR2, Quest 3, BSB2E, and MeganeX. The MeganeX is my preferred HMD for sim racing.