[mort96]

I'm not talking about devices which use USB-A to charge, I counted all peripherals which have the capability to connect via Bluetooth in any form in the "Bluetooth" category. If I counted every peripheral which comes with a USB-A charging cable as a peripheral which requires USB-A, the numbers would look even more bleak.

The only keyboards I counted as requiring USB-A are ones which are wired with a USB-A cable, and ones which are wireless but only have the ability to use an RF receiver dongle such as the logitech unifying receiver. Your mouse would be counted in the "Bluetooth" category.