If you cancel your cloud subscription do you still have access to the Adobe applications you already have?
Cloud subscription programs stop working 30 days after you stop paying
Earlier serial number programs are yours to keep How do I prevent Creative Cloud from taking over my CS6 perpetual license?
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What happens if I stop my membership?
If you cancel, you will continue to have access to Creative Cloud member free benefits, and if you saved your work to your computer you will continue to have access to those files on your own device. You will no longer have access to the Creative Cloud desktop applications or most of the services that are components of a Creative Cloud membership, and your allowed cloud storage will be reduced to 2GB.