Having had 2 Sony bodies now with the 1.44 million dot LCD, I think that the only ones complaining about it in actual use are the online reviewers, who have to complain about something

My original A7III LCD was 922,000 dots, where the A7RIII and now A7RIV are both 1.44 million dots, and I never thought either LCD was bad or low quality.
But I can see new owners of the A1 being really pissed at Sony over this. Why didn't they put this bigger 2.36 million dot LCD on their new flagship, which is just hitting the streets in quantity right now? The person at Sony who made that bonehead decision deserves to be fired.
For me the EVF is much more important and I did notice the upgrade from 2.36 million dot EVF in the A7III to 3.6 million dots in the A7RIII. More so with the A7RIV, with its 5.76 million dot EVF, which is just about perfect to me and certainly the best I have used.
Edit: The other item upgraded in this new release is the transfer speed of the USB protocol, which is now at USB 3.2 standards, and finally gets closer to the speed of the UHS-II slot(s). On my Sony A7III I saw that they, just like Nikon did with my D500, used a slower connector/protocol than what the USH-II slot was capable of. (This slower protocol was in the A7RIII and continued with the A7RIV). I bought a USH-II card reader 2-1/2 years ago and have used this reader to quickly transfer photos at these faster speeds on my 2019 iMac. Now Sony is finally matching that......So for me, another non-issue like the LCD.