Here is such an unusual bios.

The Splashtop company offers such an unusual Linux-based BIOS.
I would buy myself such a motherboard ... if they put a text editor there,
you can work without Windows)))



You can download the BIOS (from 10 to 15 seconds) and make Skype calls.
The start screen of this BIOS allows you to access the browser, email, messenger, Skype. You can work in these applications without loading the main system.
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Applications are stored in flash memory, and their set is determined by the motherboard manufacturer.

Link to the company website: www.splashtop.com