There’s a video from athlean x “the perfect home workout” [0], which I tried a couple of times now. I didn’t expect me to be that sore even after months of regular gym.
That's been slated on Reddit [1] (for whatever that's worth). From my research on strength training, for muscle gain you need to be doing 6-12 reps for a muscle group then letting it rest before doing another few sets. The Athleanx workout seems more like circuit training. I'd imagine it's better for cardio (but I'm certainly no expert).
[0](https://youtu.be/vc1E5CfRfos)