They'll be able to fuel warring between Sony's upcoming PC launcher and Steam, and the Sony and Nintendo handhelds.
The problem with that though, is that they aren't nearly as interesting topics.
Let's start with PC launcher competition. Games on a Sony PC launcher are going to look and play just as well as a Steam launcher. There's no difference. There's only so much you can really talk about in terms of UI and costs, and site features. Notice no one talks about the fact that Roblox, Minecraft, Fortnite, Valorant, and League of Legends aren't on Steam. Five of the biggest PC games in the world... At the end of the day... nobody cares.
Sony puts Elden Ring 2 and Helldivers 3 as well as others on their PC Launcher, and they're going to have success. This is why Sony is inherently more dangerous than others in the PC space and why Steam loyalists are so worried and why they've waged a campaign against Sony PSN logins. You think most of these guys really care about creating an account and logging in once? No, that happens on a multitude of publisher's games. They know Sony wants to take market share from Steam.
Now let's talk about handhelds. Even during the days of the PSP and DS, they offered such different games, there's not too much to argue over. Switch 2 and PS handheld will probably be far more similar, but you still have very different games coming from Sony and Nintendo. I think Sony is starting to look at more family friendly games in its portfolio just to round things off a bit more, but unless Nintendo is going to get into the AAA gaming space for which Sony has eaten their lunch for the last 30 years, I don't think Switch 2 and PS Handheld are going to engender much debate.