People, read the developers comments:

We know many of you are eager to play Ghost of Tsushima Director's Cut on handheld gaming devices like the Steam Deck. We're happy to share that the single player experience, including the Iki Island expansion, can be enjoyed on Steam Deck and similar handheld gaming PCs as we’ve worked extensively to optimize performance and deliver the best possible experience on these devices. You may notice that Steam marks the game as 'Unsupported' for Steam Deck. This is due to the Legends co-op multiplayer mode requiring Windows to access PlayStation Network integrated features. On behalf of everyone at Nixxes and Sucker Punch, we can't wait for PC players to start their adventure and fight for the freedom of Tsushima! Source: https://steamcommunity.com/games/2215430/announcements/detail/4188987871078331986

They strictly say that unfortunately it requires Windows to access PSN integrated features, so the multiplayer will not work because it requires said features. The singleplayer should work though. Since Concord is completely multiplayer, it needs the PSN features that only work on Windows.

Fuck 'em then. I'll stop playing video games before I switch to windows, but I'm sure there will always be indie devs willing to take my money in exchange for a playable game.

You won’t let us install a rootkit on your system? :-(

Well no multiplayer for you, cheater! >:-(

The lesson here is don't buy anything from Sony because you don't get what you bought. Sony is a dead company. Don't even pirate their shit. Let the corpse rot where it falls.

Sony really doesn’t get it. Their leadership has seemed poor for a while now, I’m still annoyed they closed their Japan studio

This is especially egregious when you remember the PS4 and PS5 operating system are themselves based on FreeBSD, meaning the original game was natively targeting a Unix-like OS to begin with. So to then say it won’t run on Linux is a huge middle finger.

At least that rootkit anti-cheat prevents all the cheaters. There totally aren't any cheaters in games protected by rootkit anti cheat systems like in valorant. Right? Riiiiiiight?

Fuck em. I'll stick with games that work on steam deck and Linux then.

Good to know. I won't buy it. Yoho yoho I guess

this is going to do a better job of getting me to not play their game then they're helldivers 2 scandal. I'm avoiding Windows like the plague now and currently the only game I have to jump back to Windows for his Beast of Bermuda and I don't play that one all that often. There's no way in hell I'm going to even consider buying a new games that won't work on via Proton lol

Funny how all the games that don't work on Linux also want your data must just be a technical thing though sure they aren't being malicious.

Japanese companies have anything other than utter contempt and animosity for your customers challenge (impossible)

Stop buying Playstation games, Sony have always been scummy.

Sony already stopped selling their games in my country due to them not wanting to put Estonia in the PSN country selection list but I guess I'll pirate their games even harder or something.

Headline is misleading since it gives impression Sony is intentionally going out of their way to prevent the game from working through Proton, but this is more the case of multiplayer component not working.

Walled garden salesman nr 1, go fuck yourself sony. Gladly there are enough great games these days.

I used to pirate games because I couldn't buy them. Now I pirate games because the publishers are greedy cunts who do layoffs to appease shareholders, shutter studios that make good games, and pull all the shit Sony's pulling this year 🖕

Guess I won't be playing Playstation games.

Thanks sony for helping me not spend money on things I don't need.

"We win too much money so fuck all those gamers"

enshittification machine go brr

wonder how much money microsoft gave them to do this

What in the hell is the point of this?

Ar yar, ahoy and avast!

Already learned my lesson a while back. I bought Horizon Zero Dawn for the Steam Deck. Game is listed as Steam Deck Verified. Froze every time between 10-40 secs into the opening cinematic. Fortunately, Steam is awesome and gave me a refund.

Funny thing is that in searching around for a fix, I found a forum post somewhere that described exactly my problem. Started reading replies and finally realized the poster was on a PlayStation from way back when the game was first released. Good job Sony.