When setting firestore.settings in nuxt.config.js, we get the following error message in a Typescript Univerrsal (SSR) Project.

Function Firestore.settings() requires its first argument to be of type object, but it was: a custom Object object

Works without Typescript in SPA mode (no SSR).

Update:
Culprit seems to be Universal Mode. It works on client, but fails on server:

// This works
const fireStore = firebase.firestore()
if (process.client) { //
    fireStore.settings(settings)
}
// This fails
const fireStore = firebase.firestore()
fireStore.settings(settings)

Problem: We want it to work in SSR projects, too, obviously...