Just provide proper Linux support.
It really beggers belief Dell are still "experimenting" with Linux and Ubuntu. Dell sells Linux machines in Asia without issue. It sold Linux machines in the UK and USA before without even advertising them while doing it's level best to make them as hard to find as possible.
Please stop pussyfooting around and just get in the game already. Provide proper Linux solutions to developers, businesses and consumers. Ubuntu is more than capable of meeting their needs.