When first used Angular, the documentation was horrible and also the construct of Angular super academic and hard to learn (back in 2014). When evaluating React it was way easier getting stated even though its html in js (jsx) approach was very different. After some time we really started to like the co-location and component based model. If you architect well, you will have a component completely in one file including js/html/css.
We solely focus on one technology for frontend development. The reason for that is, that offering customers excellent services we need to be up to date on all developments of the framework but also its community and vast amount of packages. Reading blogs, newsletters, podcasts and so on. You will realistically only be able to be really good at one, so thats for us: React!