No idea if my TV has it (LG 65CX).Not much, apart from the hdr10+ support, which not everyone will be bothered about seen as not all TVs support it, an Ethernet connection and more powerful processor for better energy efficiency, which helps cut costs for apple. That’s pretty much it.
Sure it’s faster, but the previous ones are fast enough, gaming aside, never used them for that.
I have a 2021 version and I will be sticking with that, I’m not throwing my money at something that I will see no benefit from.