route-gards.js

<Switch>
              
            {!user  && <Redirect exact from='/' to='/auth' />}
            // you can only place the Redirect component inside the Switch Component if you are using the from to sytax
            {user && <Redirect exact from='/' to='/dashboard'/>}
            {user && <Redirect from='/auth' to='/dashboard'/>}
            <Route path='/auth'  component={AuthPage}/>
            <Route path='/landing' component={LandingPage} />
            <Route path='/'  component={ProjectPage}/>
</Switch>