Vuex - I lose the data between components

The best way to ensure that you don't lose data between components is to use the mapState helper from Vuex. This helper allows you to map the state of your store to the component's computed properties. This way, when the state of the store changes, the component will be updated with the new data.

For example, if you have a store with a user state, you can map it to the component's computed property like this:

computed: {
  ...mapState({
    user: state => state.user
  })
}

Now, whenever the user state changes, the component will be updated with the new data.