Between them they make up the vast bulk of what actually gets attention and improvement in Wine, and neither one has any interest in supporting non-game applications.
I don't know how much of their business it is today, but CodeWeavers spent their first decade or so supporting only non-game applications. Their product Crossover was originally Crossover Office because it was optimized around productivity applications.
Even the announcement "trailer" of the steammachine showed it getting used on a Computer monitor with mouse and keyboard in desktop mode. They even said they want to improve the "Desktop mode only" experience iirc and for there more apps than just games are important.
And i personally probably wouldnt have bought a steamdeck if it wasnt possible to just go into desktop mode and do whatever.