Really, if you're talking three years ago, React was already widespread. The main change is that Angular.js back then was still widespread as well, and that Vue

Really, if you're talking three years ago, React was already widespread. The main change is that Angular.js back then was still widespread as well, and that Vue wasn't really. Sure, things have changed (e.g. TypeScript is far more accessible today), but if you've been doing React for the past few years, the changes haven't been that drastic, and primarily for the better (e.g. Create React App, that mainly allowed you to forget things, rather than having to learn new things).