Do things that actually make a difference, which means heavy barbell training. Anything else is generally subpar and inefficient, the main issue being no meaningful progression can be made after the first few weeks.
Heavy compound barbell training (squat, press, bench, deadlift) can be progressed and adapted to for decades. It's also an extremely efficient use of time.
In the vein of atomic habits, reducing a task to its minimal effective dose is great for starting new habits.
For people that sit all day, a 1min exercise snack makes a lot of sense. After that becomes easy and routine then gradually increasing the duration and difficulty up until a typical 30-45 min workout 2-4x a week is a great end goal.
Anyway, I haven't tried the app since I'm not really the target audience, but if it doesn't already, I do think that allowing users to put in a list of all their available equipment for the AI to factor in when recommending workouts would be great. Maybe even let it recommend equipment that aligns with the user's fitness goals and space/budget constraints (possibly as an opt-in feature), and slap on an Amazon referral code. A single 1RM deadlift or a couple bench press reps every now and then would do someone who would otherwise be sedentary much more good than grinding out a bunch of pushups or jumping jacks or whatever.
Of course, integrating potentially dangerous equipment and movements also makes proper form and safety guidance that much more critical, so it isn't something that I'd want to rush without proper testing. It'd be cool if it could watch you on video and give AI-generated real-time feedback, or at least provide recommended resources to find a personal trainer if you need one.
HIIT burpees is the most brutal thing I've found so far that fits in a 5 minute break.