Some quotes:
“When we look at the specs for the Nintendo Switch 2 and Steam Deck,” Hamaguchi said. “It’s really getting comparable to the PS5 and Xbox consoles,” they explained. “We do want to keep a focus on the consoles as well, but we also want to keep the handheld devices and their audiences in mind.”
…
“Nowadays there are many different ways to play available for us. For example, the Steam Deck, that many players use now,” he said. “We have more freedom now. Currently, even high-definition games aren’t played at home. Considering the diversity of ways one can play a game, we believe it’s important to think about it and to adapt to these new modes of play.”
I’ll play it on my Linux desktop PC anyway, even if I have a Steam Deck. But being able to load it up on the Deck is really cool. I don’t need to buy an extra copy of the game to play either on a high quality console (Playstation 5 Pro or Xbox) or be able to play it on a handheld (Switch), and the save files are managed from a single point of truth (Steam).
BTW did you know you can download your save files with your browser without installing a game in Steam? Your Steam Cloud: https://store.steampowered.com/account/remotestorage