Hi - thanks for the question.
Not in so far as I'm aware as Kudu abstracts the underlying machine / OS capabilities (App service apps run in that sandbox)
Also, you need to keep in mind the storage allocated to a plan is shared between worker VMs
For more info please see the following
As you can see there is some access to the local VM disk but this is considered volatile
You can alter the way App service works with regard to storage, which is useful for edge case use-cases. See https://learn.microsoft.com/en-us/azure/app-service/overview-local-cache for regular web apps and https://github.com/Azure-App-Service/KuduLite/wiki/App-Cache for plans which run containers
However this does not relate to OS swap space.