If you’re using Google analytics with Crashlytics you maybe using IDFA. Take a look at the Google documentation for how you can disable IDFA usage by their SDKs ex ”To install Firebase without any IDFA collection capability, use the following subspec in place of pod 'Firebase/Analytics': pod 'Firebase/AnalyticsWithoutAdIdSupport'”

Try this https://developer.apple.com/documentation/xcode/specifying-your-apps-launch-screen

Give this a try https://developer.apple.com/documentation/xcode/specifying-your-apps-launch-screen