you can search for products in your own GVM/GCE installation on the Web Interface via the SecInfo -> NVTs menu at the top. This section includes all local existing VTs in your installation and can be used to compare the content of the GCF against the content of the GSF available at:
Put there the product you’re looking for into the input box with something like e.g.:
"Tomcat" and created>2017-09-04 and created<2020-01-01
nb: 2017-09-04 is the date where the dropping of enterprise grade VTs where announced.
Afterwards sort after the “created” column and you can see that Apache Tomcat is covered in the GCF as well.