I got an answer already
Google Play Protect pop up is caused by Google security policy (OS). Galaxy Store cannot control this message.
As part of Galaxy Store review process of your app, Certification team will test the installation of the app in a device. If the pop up is displayed, the team cannot ignore this message and distribute your app to the store because it will be cause a bad user experience. If any user tap Ok once on any device then it won’t be possible to install the app. Users strongly trust Play Protect message.
In order to change this behavior please file an appeal with Google so Play Protect does not flag your app: App verification - Play Console Help
Once you have done so, then the Play Protect pop up should not show. You can resubmit your app to Galaxy Store by then.
And I found a thread that has the form to fill out and the member said it worked within 5 minutes.
Ron
Samsung Developer Relations