Yes I realized too late the term might be confusing. It's a radios streaming website/app, so not nerdy.

There is an Android app that uses a webview so that even favours Chrome. Also GoAccess doesn't unfortunately filter all scrappers/bots and most of them declare themselves as Chrome.

A sizeable part of the traffic is (non-app) Android and I don't think Firefox is huge there so maybe on desktop Firefox market-share is actually not as bad as we think?