How to rename Tax to Estimated tax in Order Confirmation Emails?

Magento 2.4.2-p1
Smartwave Porto theme
all extensions from Amasty

We have renamed the word Tax to Estimated tax on the front end via the following (it’s a requirement in our state):

How to rename the word ‘Tax’ on ORDER SUMMARY to ‘Estimated tax’?

Would anyone know how to change the word ‘Tax’ to ‘Estimated tax’ in Order Confirmation Emails?