Games publishers/developers are going to have to wind in their necks a little. Whilst memory is abundant it's also still quite expensive. We should still be aiming for efficiency and the chances are 16gb+ are in the minority here. Fact is, the more VRAM and compute you demand the smaller your customer-base becomes.

I've played many games with 8GB VRAM* and will do so for the forseeable. If that's not enough, I am not a customer. Simple as.

The truth is, there is going to be a massive motivation with the likes of Steam Deck/Machine to actually make titles that are optimised and perform well within their hardware parameters. It's money you won't want to ignore.

*One example was Silent Hill remake on PC, which used the unreal engine. It was optimised beautifully and ran without visual glitches and stutters even with the highest graphic demands on a 8GB RTX

I think it does also help that a big chunk of Steams userbase are playing smaller indie titles that don't need obscene amounts of vram. The steam deck audience for example has a lot of people playing both a mix of AAA and smaller games. Given this is advertised as 6x as powerful as the deck I'm sure they'll be fine. It's not meant to be a top of the line console thats for sure, and if it was people would be moaning that its too expensive.

Memory is also not that abundant anymore. Over the last month PC memory costs have more than doubled due to AI datacenter builds buying out all the manufacturing capacity.