I bought MX Keys Combo for Business Gen 2, with an MX Master 3S for Business mouse....
It says a lot of things on the bottom ;-) bold and big but: "MX KEYS FOR BUSINESS". plus the pictograms "Bolt" and Bluetooth.
The fact is that the data sheets at Digitec are wrong: https://www.digitec.ch/de...

I recommend comparing the fact sheets at Logitech.
https://www.logitech.com/en-us...
https://www.logitech.com/en-eu...
Unfortunately, even at Logitech it is not easy to understand what the differences are.
And unfortunately Logi does not offer a "Compaire option like Digitec.
In my business evaluation a year ago, the "Bolt" dongle encryption and the Business Management functionalities, among other things, were decisive. (Companies usually do not grant admin rights for drivers and software)
Without firmware installation, you are pretty much lost with the Business Combo variant.
Compared to my HP Evaluation "HP Wireless Rechargeable 950MK" Plug in, switch on and you're done. No SW, no drivers, no Bluetooth connection. Just have fun...

To clarify business requirements, I called Logitech support on +41 (0)22 501 16 09, very friendly and competent.

Among other things, price, weight, battery life and the lack of a procurement basis (federal administration) at Logitech were criteria for choosing the HP set.
I continue to use the Logitech set in my home office. I (subjective perception) find the typing experience very pleasant. However, one of the things that bothers me is why the keyboard keeps thinking it needs to switch on the keyboard light.
And if I had to carry the Logi Set in my rucksack to work every day, it would definitely be too heavy and too bulky for me.
The HP wireless encrypted keyboard is as flat as a pancake...
https://www.hp.com/ch-de...
Good luck