Intel themselves do seem to offer downloads, eg https://dgpu-docs.intel.com/driver/installation.html https://dgpu-docs.intel.com/driver/installation.html & http

Intel themselves do seem to offer downloads, eg https://dgpu-docs.intel.com/driver/installation.html https://dgpu-docs.intel.com/driver/installation.html & https://www.intel.com/content/www/us/en/docs/oneapi/installation-guide-linux/2023-1/install-with-gui.html https://www.intel.com/content/www/us/en/docs/oneapi/installa... - it's not outside the realm of possibility to have some kind of installer app there.