Browser Civil War in 3-5 years? Microsoft as a big enterprise will likely push their charm to improve things in chromium. And Google as another big enterprise

Browser Civil War in 3-5 years? Microsoft as a big enterprise will likely push their charm to improve things in chromium. And Google as another big enterprise with good control over chromium till now will proably not like all their changes. So how good is the chance for some friction and later an open conflict of interessts to appear?