Huge companies, yes. They'd still prefer to spend less money/resource/time if they have the option to though, hence why some large companies actively explore cr

Huge companies, yes. They'd still prefer to spend less money/resource/time if they have the option to though, hence why some large companies actively explore cross platform technology. Adobe did that with phonegap a long time ago. You're talking about Electron there, which like phonegap is a browser wrapper and a different thing to RN. I don't believe RN is known to be a battery drain in general.