The new WC action scheduler table was introduced in WC 4.0, so CC wouldn’t be using it.
You can read about all the changes here: Migrating from WooCommerce to Classic Commerce - #15 by ozfiddler
As you can see, a bunch of new tables were added. This didn’t concern us greatly as it had no effect on CC. But more concerning was a table that was altered. wc_product_meta_lookup
We looked into this and it didn’t have any effect on CC.