At absolutely no point in the 2020s should you, or anyone you don't hate, start a project with React.
There are a lot of reasons for this -- that it's legacy tech built for a world where IE 6 still had measurable share, that the Reactor community has been wrong about everything all the time for a decade+, that the money you'll save can be measured in truck-loads -- but the *most* important is that it will opt you out of the godforsaken React discourse.
Be free! Never look back. Do engineering.