I installed and tested the WooCommerce storefront. It still doesn’t show up.
What else I noticed:
With the WoodMart theme, I also added the widget for “Last viewed products” to the single product widget area. After activating the WooCommerce Storefront Theme, the widget (last viewed products) is also displayed, just not the other filters.
But if I activate the WoodMart theme again, the “Last viewed products” widget is deleted from the widget area so that it no longer exists and has to be reinserted into the widget.