I want to turn off "Turn off wifi to save power" and "Turn off bluetooth to save power" features in Ubuntu

ubuntu wireless-networking power bluetooth sleep

Solution 1:

Those are not "Features" but the switches to turn wifi/bluetooth off. The text is just informing you to turn your wifi off to save power when you are not using it.

Ubuntu 16.04: Cannot prevent wifi sleep during screen lock This might help you with the your second question.

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