This is huge. I was beginning to lose hope we'd ever see a big budget high-profile non-indie get a Linux port ever again.

Edit: Maybe not that huge...

Now that there is a Steam Deck Native build, is Baldur’s Gate 3 supported on Linux?

Larian does not provide support for the Linux platform. The Steam Deck Native build is only supported on Steam Deck.

It would be awesome if they released it on GOG too

Ooh, I think it's time for me to finally buy this game, hopefully in a way that signals my support for this action.

It blows my mind that I haven't played BG3, btw. The original saga of 1 + 2 + expansions is S-tier nostalgia deep in my heart right along with the other big PC and console RPGs of the 90s. i've just been in one of those phases of life where I am focused on other things and not playing many games at all unless my family gets me to jump into something light and co-op.

And when I say focused, on a scale from 1 to 10 I'm talking ADHD hyperfocus.

Wasn't expecting a high profile game to get a native Linux build, especially so much time after release, but I'm glad to see it!

Was already working fine through proton, but this is great to see as well!

Not yet in GOG, though.

This is technically true, but they specifically state that they don't support Linux in their faq.
This is "just" a SteamDeck build.

(I actually tried to run it on debian, but it didn't want to start. That said, I invested 0 time, maybe it was just a minor thing. no idea)

does it break mods or not work with mods for the windows version?

Did some testing on this on Linux, Arch + KDE 6 (wayland) + Nvidia GPU. It looks like DLSS works on Nvidia hardware. I didn't do formal benchmarks, but I didnt notice performance improvement. On my laptop it actually used roughly 10% more watts on the GPU while capped at 60fps. I don't think I could tell the difference on a blind test. So I'll use it anyway to do my part for hardware surveys.

Although this was Act 1, perhaps Act 3 will tell a different story.

I'm confused. It's a Linux native build, but they call it steam deck native. Does this mean it's not optimized for Nvidia since steam deck is AMD hardware? I'm fairly new to Linux, so the wording is throwing me off.

Oh nice I'll cop it on Steam Deck for the holidays.

Okay now I'm buying

Don't remember if it was the same on Windows (before I permanently switched) but hopefully this will keep my GPU from running full throttle from the second I click the launcher until it's closed.