Oop I forgot the main thing, your Model being the Tencent with a Global Firmware "ww" and therefore unlocked with Unlock Device App, you no longer have OTA updates, you have to do the updates manually from the ASUS download.
No more warranty or support from ASUS, only the seller of the device is able to fix a hardware problem, which they never do, so take care.
I don't have any touch with Android 12, so i don't know, i was waiting auto update to make it, but is not happening. Only thing which is annoying me is when i go to Settings -> Security and Lock screen there is two options - one is "Security Update" another one is "Google Play system update". Anything else is not bothering me and wondering if new updates giving better performance as phone, coz i mostly use it as phone, some web browsing and slacky gaming like Rush Royale, World Tennis Pro and Diablo Immortal . The Phone is absolutely amazing and i love it with every sec i use it.
Also about Unlock Device App did not use any software for that. This is how i got it (delivered), everything was tight and box was locked the way how it is suppose to be (checked some unbox videos before my phone to be in my hands). So i did not see any outside entry in my package. Maybe happen when i connect my Mobile Operator or when i connect to internet.
Thank you for your assistance. I finally found why i am stuck with .86 even Asus support did not know my reason 😉