To 1-shot MS Word will be possible only within some workspace designed for creating that kind of software. It will probably be saas style where you pay to export binaries or maybe some will take 30% if they become destinations for finding such software.

But I would bet other platforms are used for game dev, or for filmmaking.

Such that we still won’t have some super “model” that just does everything. The harnessing becomes architecture becomes software becomes user experience and expertise.