Semantics.
Most people refer to the infrastructure interface as BIOS just like we say Kleenex instead of tissue.
Most refer to UEFI as UEFI or UEFI BIOS. The terms may not be correct but it is the general term that 90% of users recognize.
most UEFI firmware implementations provide support for legacy BIOS services
So in general terms they do the same thing. Does not preclude the “BIOS” from needing updating ocasionally.
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