Let's say I have a local react-native clone (RN), which has @types/react installed.
Then, I have a package A that is linked to RN. Even if it has its own node_modules/@types/react package, it might get TS2742 errors about a dependency on the @types/react of RN, which is "non portable".
To fix this, Indo can search linked dependencies (like RN) for node_modules/@types packages and link them into the node_modules of the dependent package A.
But @types packages in devDependencies should probably not be linked.