What happens when I connect my Google Analytics account to SEMrush?
Rest assured, SEMrush will never store data from a connected Google Analytics or Google Search Console account. The sole reason for allowing you to connect your Google accounts to SEMrush is for your convenience.
There are multiple tools in SEMrush where you can connect a Google Account. For more details on how and why you should connect your Google accounts to SEMrush, read this article.