Apple is already making as easy as possible to port apps, I doubt they can do much more, other that trying to convince some major software houses to port their apps to iPadOS, even without optimising them for touch, like it happened with DaVinci Resolve... Remember that for companies that means giving Apple 30% so not a huge incentive to do that...
Some subscriptions based apps could skip that like Microsoft does, but Microsoft is a competitor with Surface so has not a big incentive to make Office equal on iPad. Other major free app would be full Chrome, but Google is a competitor too so even if it becomes possible to have full browsers with extentions I doubt they will do it and (outside the US) there is whatsapp, which is a huge deal for businesses in many countries, but Facebook hates Apple (who has implemented anti-tracking options) and they'll avoid to make an iPad app...
And even just this is a huge deal. If iPadOS could run full Office, full Chrome and whatsapp it would be a huge deal for many businesses and individual around the world.... much bigger than FCP and Logic....
As others have noted there aren’t really much help from Apple in getting Mac apps on the iPad, getting iOS/iPadOS apps on MacOS has a lot of support though. There’s so much Apple could do to make the transition for developers a lot easier. As I said I think Apple eventually will go that route but they aren’t there yet.
Since Macs run a gimped version of office I doubt the full experience is coming to iPadOS in the near future.