Soggi's BIOS and Firmware Page (2020)
soggi.org
soggi.org
Reminds me of Linfox Domain's archive of firmware for Nintendo DS Flashcards: https://linfoxdomain.com/nintendo/ds/ (still online after more than a decade!)
My office connection is a business OVH fiber, and it's quite often banned, or subject to additional captchas and other annoyances, I assume because some admins see "OVH" and assume it's a bot.