OnePlus 8T Open Beta 1 Oxygen OS 12 (Non-T-Mobile Firmware)

T-Mobile is notorious for being the last to release updates for their phones. I've been with T-Mobile for 12 years and I have the OnePlus 8T+ that i bought from them... Besides being the worst phone I've ever owned, I've also realized that Android 13 will be out before I even get Android 12. This has taught me two things: 1) Don't ever buy any phone unless it's a Samsung or Apple, and 2) Don't ever buy any phone that is customized by T-Mobile (or any carrier) but rather buy the unlocked version of the phone. I just purchased the Samsung Galaxy S22 Ultra directly from Samsung and they specifically recommended that I purchase the unlocked version instead of the T-Mobile specific version (with no price difference) because of how lazy T-Mobile is with regards to releasing new software. I'm only with T-Mobile because I'm grandfathered into the old $100 (all taxes and fees included) unlimited all in plan for 3 lines and you can't get a price like that anywhere. The moment they do something to break that grandfathered plan I have I'll never do business with T-Mobile again.