Look at the last part of this page
https://multiecuscan.net/SupportedVehiclesList.aspx

Yhey are for sale on amazon, ali, ebay etc.

You checked for the adapters you need for different modules?
https://multiecuscan.net/VehicleSupportCheck.aspx

On other fotums they are very much into the vgate vlinker ms.

There is also a package on the mes site itself, so i assume that means good compatibility

https://multiecuscan.net/OrderMultiecuscanMS.aspx

If you have a new or virginized key and the pin code for your car, MES can add the new key.

If the key is used before and not virginized or you do not have the pin code, MES will not be able to add the key to your car.

You need the Pin for the car to do this.
Alfaobd can retrieve the pin, mes works better for registering the key

If the counter has reached zero it will indeed not show anything snymore for the oil change interval. I think they believe 9 oil changes are enough for the lifetime of the car :D :D When it is not zero, doing a proxy alignment resets it to 10 again. I heard some people have succes with resetting it ...

Is the oil change counter at zero?

Like the error says: buy an elm327 or obdkey (or canticar) interface.
VAG KKL is not the same

Can you explain what a red bypass cable is?

For a 2020 giulia you will need to physically bypass the sgw and have the (blue and gray?) adapter cables as well

As long as it is a supported model, yes