Hi @i8displaynames ,
By default, the new deployment type doesn't uninstall the deployment type of the superseded application. This scenario is commonly used when you want to deploy an upgrade to an existing application. To remove the existing deployment type before the new deployment type is installed, select Uninstall. If you decide to upgrade an application, make sure that you test this in a lab environment first.
And here is the similar scenario about using SCCM Application Supersedence:
https://www.anoopcnair.com/sccm-application-supersedence/
Note: Non-Microsoft link, just for the reference.
And here is Microsoft explanation about this scenario:
https://learn.microsoft.com/en-us/mem/configmgr/apps/deploy-use/revise-and-supersede-applications#specify-a-supersedence-relationship
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