But yeah... just this week I was traveling for work and my kid reached out wanting to play a little Deep Rock Galactic with me. I couldn't believe how easy everything was from my Ubuntu 24.04 laptop. Steam, proton, Discord, all of it just worked and I wouldn't even have realised it wasn't running natively if I hadn't noticed the extra proton download in the Steam client.
Very nice work.
Lets not be naive here, this is the money they are saving in Windows licenses for the Steam Deck, and having their own store instead of Windows Store/XBox PC App.
Yet they are doing zero to foster native Linux games.
None of this is really going to change until we end up with a situation like the EA/Apple Store conflict: a major player unable to sell a game on Windows for some reason.
Proton is them trying a different path towards severing or lessening the Windows dependence, in my opinion.
They certainly have a better card deck than Loki Entertainment used to have.
"zero" might be a bit harsh, considering that they do some things at least, compared to others who literally do nothing. Steam the platform has native Linux support, what games are natively available is visible on Store listings, and a bunch of the SDKs (all of them even maybe?) are available natively on Linux too. The situation could have been a lot worse.
Valve themselves seems to disagree with you here, considering they still have Linux native SDKs available for integration, and are releasing their own games with native Linux support.
I'm guessing if what you say is true, Valve would be the first to move towards that reality you paint, but we haven't seen that yet, I'm doubting we'll ever see that, but the ones who live will see I suppose :)
The Linux work done for Steam Deck is fantastic and I do credit their efforts with inspiring others to work on similar projects that extend and complement what Valve achieved. Much of the hard effort did go into Windows games on Linux before Valve looked at it; everything the WINE project, Codeweavers did, gaming via Lutris since 2009, however Valve have definitely been a force multiplier.
Trust is earned and I think Valve are doing pretty well on that front, especially when you look at the differences to other PC stores, Ubisoft, EA, and to some extent Epic. GOG and Itch are very different beasts.
To some extent I miss the time where Steam was totally curated, you had to make an impact to get your game on the platform, back before it was a free-for-all of shovelware and low-effort slop. Occasional controversies aside, at least on Steam the tools / marketing funnel are there to keep the popular games at the forefront of the store whilst also being fairly open to allow devs to publish without being the chosen one.
Is there a danger of doing to games what Spotify has done to music? Maybe, but I reckon the super deep-discount sales have calmed somewhat and are happening later in game's long-tail part of the lifecycle or used as promo for sequels.
There are plenty of publishers that choose to mainly avoid going that route, often the traditional established publishers with console outlets they don't want to cannibalise, for example Sony and Konami.
I think such business model ultimately doesn't scale well for games (several million-dollars production budgets sharing minuscule pieces of a ~$20 all-you-can-eat subscription pie).
Microsoft always knew this, they didn't try to win the market, they tried to subvert the business model, probably expecting the industry as a whole moving towards it -- which didn't happen at all, at least not yet.
Simple math would prove this. There's no way acquiring half the good studios in the world and make them release flop after flop was a break-even operation. It's several orders of magnitude behind.
Exactly because they aquired half the good studios, they happen to be one of the biggest publishers, people forget some of those studios keep using their own branding instead of anything Microsoft, and it would hurt Steam if Microsoft decides all those studios would pull out of it.