well, it does have some upgrades on the base of LG A1. You can see the comparison review on
LG A2 vs. LG A1 TV Review
1. LG A2 adapts Alpha 7-5 processor, and A1 adapts Alpha 7-4. The new generation processors are better in terms of picture processing.
2. The 2022 LG OLED TVs are equipped with the new webOS. The LG A1 has webOS 6.0, and the LG A2 has a system called webOS 22.