I only use UAV Forecast and it shows a shaded area if there is a concern. In my case, it points out areas where emergency helicopters fly but the area marked is for a local hospital that is more than ten miles away. The DJI Go 4 app will also warn you of questionable flying areas. In your case, I do not see any cause for concern according to your screen shot of B4UFly. Especially if you are "Flying for Fun".