I don’t see a situation where digital distribution of games would have led to a space where games having no DRM would have been mainstream. Even with DRM companies continue to associate PC with piracy.
There was also the whole Sony rootkit after all with music CDs, so I’m just not seeing this whole argument of this space could have been different if it weren’t for valve. Not even sure PC gaming would have been as big as it is now if it weren’t for Valve and it really would have been a situation of PC gaming being dead and for niche titles as opposed to just some clickbait headline.