Glenton Samuels commented the proposal for the future WordPress admin materials and surfaces and laid it down very clearly why using React for it is a bad idea. And I fully agree with it.
Just to quote the conclusion, but it’s worth to read the full post:
A full React rewrite may look cutting-edge, but it threatens the broad community, the ecosystem, and WordPress’s future sustainability. […]
https://kittsteiner.blog/blog/2025/why-using-react-for-a-new-wordpress-admin-is-no-good-idea/