Interesting that you compare them to mixins, which the react team considered harmful and removed.

What problems do hooks solve better than composition or hoc?

I really haven’t kept up with react, when I last used it 6 months ago I started with the same boilerplate I made in 2017. Could it be things are being added to react that are unnecessary for most small and medium sized apps? I got that feeling when I saw react router 4. At least v6 is moving back towards a simplier api.