If you subscribe to a service (such as Paramount+) through Roku, the uninstall function is not available. You have to cancel the subscription, which enables the uninstall function on the * button.
If you ever want to use your subscription on something other than a Roku device registered to your account, you should subscribe to the service directly with the provider, which would then allow you to access your subscription on any supported device.
Dan
Roku Community Streaming Expert
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