I'm ready, but as a SteamDeck player I have to wait for mods like Controlify (and to a lesser extent Additive) to update before I can play.
I could hookup my keyboard/mouse... But handheld is just so convenient.
Hopefully it won't be too long, I'm excited to ride around on a ghast.
Re Minecraft, the "Vibrant Visuals" update only applies to Bedrock and not Java at the moment.
I assume most SteamDeck Minecraft players are using Java, so you won't see this particular change at this time.
Although it is coming later.
And Java has had shaders since forever.