Microsoft also as part of their solutions for Crisis Communication have ramped up a ready to use Power App Template that talks with your SharePoint Crisis Management site that you can build as I have described in my other post.
This app will help you to reach all of your employees during this challenging times.
For more information and the steps to setup this solution you will find all that here:
If you need help or support setting this up, feel free to contact me.
Stay safe and wash your hands!