No, no modern OS uses any BIOS calls on UEFI systems, and CSMs are disabled by default on any system sold with secure boot enabled (ie, everything sold with Windows pre-installed)
Oh, sorry, I didn't answer the other part of your comment. Network is required so you can boot from the network, which is commonly used for reimaging systems (not just servers, it's often done for laptops in enterprise environments). Non-keyboard input is a necessity for any devices that don't have a keyboard, but mouse input is also just what users expect these days.
