Of course there isn't much benefit to using React/Angular/Whatever (and other tools in those ecosystems) if your site is mostly a static thing and maybe only needs some interactive content here and there.
If you have a stateful application (or even just a single stateful part on a static site), React will simplify life a lot.
Figure out your requirements and develop based on those. That's pretty much it. There can also be external requirements (e.g. we want to be able to hire easily, so opting for a well-known framework is better) and those should be taken into account as well.
If you have a stateful application (or even just a single stateful part on a static site), React will simplify life a lot.
Figure out your requirements and develop based on those. That's pretty much it. There can also be external requirements (e.g. we want to be able to hire easily, so opting for a well-known framework is better) and those should be taken into account as well.