default or selected kernelversion does not have config value CONFIG_HYPERV_VMBUS.
Result is shown for kernelversion 6.18-rc3
Microsoft Hyper-V VMBus driver
modulename: hv_vmbus.ko
configname: CONFIG_HYPERV_VMBUS
Linux Kernel Configuration
└─>Device Drivers
└─>Microsoft Hyper-V guest support
└─>Microsoft Hyper-V VMBus driver
Select this option to enable Hyper-V Vmbus driver.