I have always found the big 3 JavaScript frameworks to be three versions of the same thing with slight differences. As someone who as worked in frontend for a while I am vexed in why people think the skills from one framework don't translate to the others.

I remember talking to someone about working on a project and they asked me if I had worked in Angular and I said no but I have worked in Vue and React to which I got a reply of "you should really learn angular."