Do updates to email filter templates apply retrospectively?

Hi - I have applied an email filter template to several mailboxes.

If I update the email filter template with additional filters, are these applied to these mailboxes?

Or does it only apply the filters that the template contained when it was added?

I hope that makes sense.

It is not clear how you added/created the email filter template. Could you elaborate more about this ?

I have created a Filter Template via CWP > Email Accounts > Email Filters > Filter Templates named Spam with x number of entries.

I then add this to 4 of my email accounts individually via Email Filters > Apply from Template - Using the template named Spam

If I then add a filter to the Filter Template named Spam, does this update the entries for all 4 email accounts