puts you in the role typically taken up by NPCs in other… RPGs
Games with this concept instantly grab my attention.
How much virus exposure will you risk for a shortcut through the main quest?
Now I am curious if by this they mean "whatever the usual protagonist of the RPG is doing," and if so whether the game makes it explicit to you, directly coming out and saying "this is the hero of the story, and here's their main quest path!" or if you infer it. Both could be enjoyable.
Although unfortunately the post-apocalypse thing makes this a hard no for me ;-;