But you could also have 2 people working on React Native and have 1 person each for getting it to play nice with iOS/Android, and eliminate the need for an extra engineer.
Well, if React native is anything like the many react websites, then this isn't too far off actually. "modern" websites can already send your CPU puffing, when you hover over some element with your mouse pointer and it triggers some JS emulated style for :hover.
tss.. some people dont like being reminded that their favourite tech performs worse on an Nvidia 3090 than Winforms did on 800 mhz cpu running windows 98