Well, it’s nice (?) to see that “but is it OSR?” conversations are just as fruitful as the “but is it a storygame?” and “but is it an RPG?” conversations were last decade.
Fruitful? Is that the word I’m looking for? No it’s some other word.
I will say that you spend about half your time dealing with continuous-but-story-driven material, about half your time with randomized-but-story-driven material, and about half your time with procedurally generated awful grindiness. And all three of those halves inform each other if you’re playing right.
Not any kind of OSR I’ve ever heard of but that third half is probably inspired by generated hexcrawl type play.