I used to use it, but then I switched to MPV, as it works a lot better with hardware acceleration. MPV supports more methods for hardware decoding (e.g. nvdec), and also MPV will keep the frames in VRAM when doing hardware decoding, and do additional processing and presentation using the GPU, while VLC copies everything back to system RAM and processes the frame on the CPU.
At the time I switched hardware decoding with copy-back would actually result in twice the CPU usage compared to software decoding, but that was a long time ago. Also, I would get tearing in VLC and not in MPV.
Figured I'd do the math on the power required.
In the article, they show a iPhone 15 Pro, which has a 3274 mAh battery, so let's go with that. Assuming a 3.7 V battery and a 1 minute charging time, that's
3274 mAh × 3.7 V / 1 min ≈ 727 W
.