Can this replace weights for good?

I was in hospital a few years ago, and in the room I didn't get to train, I've been training consistent strength for 24 years. So, it was a bit of a shame not to be able to do more than push-ups, but then you lose strength. Doesn't really matter if it's only a few weeks, that wasn't the point. But I had some time before that again, trained a lot of bodyweight-exercises, and I had trained Front-lever and back-lever, which I almost mastered before I gave up. I figured out that you could do it on the floor, instead of on the bar, so I tried. Hanging from a pole is one thing, but on the floor, it just felt impossible. Do you think this can replace weights for good, you would train all your life and still not manage. Added a picture