Just for the record in case anybody wishes to buy the 2023 Gen 2 and flash it to official CN ROM to get OTA updates.
I've flashed from 15.0.795 to 16.0.617 using RSA by following this
https://gigglehd.com/gg/mobile/15638286
or this if you prefer
https://xdaforums.com/t/y700-2023-gen_2-regional-rom-flashing-guide.4685115/
Quite value for money
Considering I bought the case, keyboard, sleeve, mouse, glass screen protector and stylus pen for
So now I've got a 12/256GB official CN ROM with OTA updates Snapdragon 8+ Gen 1 for
Total damage $354.31 + $15.57 = $369.88