Officially, there's no Linux Developer Edition, so you'll need to install that and check it works as you need it, although the higher-end Dell Pro Max 14 Premium does come with Ubuntu out of the box.
This is going to be the config file for your device. Investigate the partition layout of your device and make notes on where to find firmware for e.g. GPU, BT, Wi-Fi and other DSPs, then Write a ...
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