You can deactivate an add-on, however, it will be temporary. As the documentation says, if you disable a paid add-on in a cloud instance, UPM(Universal Plugin Manager) automatically reactivates the add-on within a month.
Here you can find the steps to disable/enable add-ons: Disabling and enabling add-ons
Also, if you don't want to use it anymore, you may need to unsubscribe the add-on rather than just disabling it.
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