you could do so ething like below.

Add this in startup.cs

    if (env.IsDevelopment())
    {
        ...
    }
    else
    {
        app.UseExceptionHandler("/error");
        ...
    }

Then create an error controller

public class ErrorController : Controller
{
    [Route("error")]
    public IActionResult Index()
    {
        switch(Response.StatusCode)
        {
            case StatusCodes.Status200OK:
            case StatusCodes.Status500InternalServerError:
                return Redirect("/500");
            default:
                return Redirect("/404");
        }
    }
}

You can add the pages for any of the statuses you require.

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