As of the Progress Update, the Preferred Cardio setting has been removed. If you used it to steer the cardio you were prescribed, you can get a similar result in a couple of ways:
Set your equipment to match what you have. Peak Strength only prescribes exercises you have the equipment for, so adjusting your equipment naturally narrows your cardio toward the options available to you. See How do I change my equipment?
Replace a cardio exercise and remember the swap. When a cardio exercise comes up, use Replace Exercise to switch to the one you prefer, and turn on "Remember replacement" so Peak Strength keeps prescribing it for the rest of your Training Cycle. See How can I replace an exercise?
If you have additional questions or need further help, contact us at support@peakstrength.app.