I believe the flash chip in this computer (MSI Z390-A PRO/MS-7B98 motherboard) is a W25Q128FV in SPI Mode based on Google searches on ID 0xEF4018 indicated below:

Output from FPTW64.EXE -I below:

Intel (R) Flash Programming Tool Version: 12.0.80.1708
Copyright (C) 2005 - 2020, Intel Corporation. All rights reserved.

Reading HSFSTS register... Flash Descriptor: Valid 

    --- Flash Devices Found ---
    ID:0xEF4018    Size: 16384KB (131072Kb)

    --- Flash Image Information --
    Signature: VALID
    Number of Flash Components: 1
        Component 1 - 16384KB (131072Kb)
    Regions:
        DESC     - Base: 0x00000000, Limit: 0x00000FFF
        BIOS     - Base: 0x00300000, Limit: 0x00FFFFFF
        CSME     - Base: 0x00003000, Limit: 0x002FFFFF
        GbE      - Base: 0x00001000, Limit: 0x00002FFF
        PDR      - NOT PRESENT
        EC       - NOT PRESENT
    Master Region Access:
        BIOS     - ID: Read: 0xFFFF, Write: 0xFFFF
        CSME     - ID: Read: 0xFFFF, Write: 0xFFFF
        GbE      - ID: Read: 0xFFFF, Write: 0xFFFF
        EC       - ID: Read: 0xFFFF, Write: 0xFFFF

Total Accessible SPI Memory: 16384KB, Total Installed SPI Memory: 16384KB

FPT Operation Successful.