iPhone 16 Pro screen turned green and is unresponsive

if it was me then I would

try restarting the ios device Force restart iPhone - Apple Support

and check if it resolved it

if it did not then I would try Restore your iPhone, iPad, or iPod to factory settings - Apple Support

if that did not resolve it then I would contact apple about repair Contact - Official Apple Support

It seems the phone is busted.

Do the Contact - Official Apple Support

thing