> tens of billions of dollars building out their respective ecosystem presents a tremendous opportunity to developers
That's... one way to look at it.
Another way is that they'd be spending even more if there were more healthy competition in the alternative app store market.
Amazon is incentived to run an Android app store now, in the same way Microsoft was incentivized to maintain an ARM build of Windows: it's not a corporate priority, because it doesn't make business sense for it to be until the playing field changes.
That's... one way to look at it.
Another way is that they'd be spending even more if there were more healthy competition in the alternative app store market.
Amazon is incentived to run an Android app store now, in the same way Microsoft was incentivized to maintain an ARM build of Windows: it's not a corporate priority, because it doesn't make business sense for it to be until the playing field changes.