Angular.js is a framework.
Next.js is also a framework.
Comparing apples to apples, then you should compare Angular.js to Next.js, and not React.
Next.js is a framework.
Angular is both a component library AND a framework.
Angular.js is a framework.
Next.js is also a framework.
Comparing apples to apples, then you should compare Angular.js to Next.js, and not React.