Why are error's not sent to the front end by default in laravel+inertia+react?

So I have a form in my project, that if successfully submitted redirects to the home page, as it is a report form so the user reports a problem and then they're redirected home. The issue I ran into is that I wanted to make a simple success toast in my react front end so that the user knows that their submission has succeeded but I realized there's no built-in way to handle errors from flash data from the session. So this is the back-end method for reference:

public function store(ListingReportRequest $request)
    {
        try {
            $data = $request->validated();
            $data['reporter_id'] = $request->user()->id;
            $report = ListingReport::create($data);
            return redirect()->route('home')->with('success', 'Report submitted successfully..');
        } catch (\Exception $e) {
            return redirect()->back()->with('error', 'Something went wrong when submitting the report.');
        }
    }

Pretty simple.

But in order for me to use that data I had to go into the handleinertiarequests middleware and add it to the response

                'error' => fn() => $request->session()->get('error'),
                'success' => fn() => $request->session()->get('success')
            ],

and then on my front end I could consume it and display it as a toast

  const { flash } = usePage<PageProps>().props;

    useEffect(() => {
        if (flash && flash.error) {
            toast.error(flash.error);
        }
        if (flash && flash.success) {
            toast.success(flash.success);
        }
    }, [flash]);

My question is, is there a better way to send error messages back to my react front-end that is built in? Now this is not a problem if I'm staying on the page I'm submitting the form in, because I can use axios to save the response and display it, but if I'm redirecting I don't know of a built-in way to do this.

Sorry if the explanation is a bit lackluster, feel free to ask for clarification if you don't get my question.

and then consume it on the front end