Hello @TheoDeSo , just simply rewrite the configuration:

spark.conf.set("fs.azure.account.key.{storage_account}.dfs.core.windows.net", "{myStorageAccountKey}")

use this uri to access the storage account: abfss://{container_name}@{storage_account}.dfs.core.windows.net/

You can check using: dbutils.fs.ls(" abfss://{container_name}@{storage_account}.dfs.core.windows.net/")