I think it’s possible that internal language did exist before it could be vocalised. That is, before we evolved the necessary structures in the throat to make words, we were thinking according to basic grammatical rules e.g subject-verb-object. Words in human language are like labels for internal concepts, and those internal concepts would have existed before language was a thing.
Heroic works really well. I’ve just installed it myself recently, motivated mostly by a desire to finally play the free games I got off Epic. I’ve only installed two EGS games so far - Civ 6 and Guardians of the Galaxy - but they’re working perfectly, running via proton.
The experience is so good I was actually inspired to buy my first game outside of steam in years, namely Wartales which I just bought yesterday on GOG. Installation is a breeze, it runs under proton, and as far as I can tell it is running perfectly.
I sort of prefer Heroic to Steam in fact, because it starts almost immediately - no waiting around for 30 seconds while it tries to connect to the Steam network etc