You can use a programming language like R to bypass the Google Analytics Web interface to retrieve the data you want. Here's a step-by-step.

Learn how to extract the maximum amount of data from the GSC API and filter difficult URLs using regular expressions.

The only alternative to ETL is manual data entry — which can take literal months, even with an enterprise amount of manpower.

Alternatively, you can try a Python-based library to extract or scrape data from different web pages.

If you’d like more customizable tools to extract data — and easier automation of data requests — consider using a programmatic approach with the Google Analytics API.