Why is there a huge discrepancy between SEMrush traffic and Google Analytics

I’m auditing a website and noticed something that seems completely off. SEMrush lists the domain as an elite site with up to 110k organic views per month, but when I log in to the site’s Google Analytics, it only shows around 8k monthly visitors. I get that tools like SEMrush and Ahrefs are just projections based on keyword rankings, search volumes, and estimated CTRs, but this discrepancy feels insane to me. How can there be such a vast difference between these numbers? Has anyone else run into this before? Is it common for SEMrush to overestimate traffic by such a large margin, or could there be an issue with how Google Analytics is set up for this site (e.g., incomplete tracking)? Would love some insight here