Yeah, I don't disagree. F.ex. planks are definitely both strength training plus cardio and they are my favourite cardio so far. Riding a bike I love as well but I am in the middle of a city and just biking to a big park that I love is by itself an entire workout session, quite the long and risky one at that (since you have to navigate traffic and people -- no bike lanes).
My message mostly is: "get your heart pumping". The sedentary lifestyle reduces the speed of the metabolism which is one of the worst things that can happen to our bodies. Thus we have to actively work against this negative phenomena.
How does one go about it is indeed a personal journey.
If you wear a heart rate monitor, you'll find that genuine strength training spikes your heart rate something fierce, much more akin to HIIT than low-intensity cardio.
And building lean mass as one tends to do with strength training is one of the most effective ways of increasing one's metabolic rate. Lean muscle mass is much more metabolically active thank a similar amount of fat tissue.
And that's not even getting to the effects on glucose/insulin sensitivity, body composition, self-confidence, quality of life improvements, etc.
Ideally one should be doing a few hours of cardio and a few hours of strength training every week.
My message mostly is: "get your heart pumping". The sedentary lifestyle reduces the speed of the metabolism which is one of the worst things that can happen to our bodies. Thus we have to actively work against this negative phenomena.
How does one go about it is indeed a personal journey.