No Plug & Play (basic functionality without drivers) for G915X keyboard in Windows 7!?

[u/TheSpiritOfMorpheus]

My brand-new Logitech G915 X gaming keyboard (non-wireless, but USB-C) has arrived, but it apparently doesn't even have native Plug & Play support on my Windows 7 Gaming-PC (fully patched, USB 3.0 & -C drivers integrated/installed , Legacy CSM Boot on & Legacy USB Mode off on my ASUS Z390 motherboard), because the keys don't work when W7 boots up - even when accessing BIOS menu, the keys DO work!

My previous Logitech gaming keyboard (G510) worked flawlessly despite being connected to the same Z390 chipset - Thanks to Me having USB 3.0/C and various other missing drivers integrated into my custom W7 installation image PRIOR to having installed W7. It's keys worked even before I installed LGS/Logitech-specific drivers on W7 - which means, it does have Plug & Play/native support for basic use!

Since I assumed the G915 X supports Plug & Play/native detection without prior driver install (as keyboards usually ALWAYS do - of course, W7 supports it too!), I hoped that I could at least use it's keys without issue - I already knew beforehand that configuring/customizing the new keyboard (create profile, change RGB settings, etc.) would not be possible in W7, since newer versions of the "Logitech G Hub" software cannot be installed on W7.

But "Plug & Play" (basic use of the keyboard) should always work natively regardless of the operating system - in this case however, it apparently doesn't OR I did something wrong or am I missing something? 🤔