I disagree that they care. The Index is outdated and overpriced compared to the competitors, and they haven't released anything new since. It came out around the same time as the Quest 1.

The recent #SaveTF2 fan campaign shows how little they care about that game, except for releasing new skins to sell every couple of months. https://www.save.tf/

I don't even expect a Steam Deck 2 now that every other manufacturer is making x86 handhelds. At release their main competitor was the Switch, which didn't run Steam. What's the point of making a new one when all the competitor devices will have Steam installed anyways? They haven't even released a generic SteamOS 3 install