So when strength gains stall and you've already increased volume as far as you can, while lifting every single day, what exactly do you suggest a lifter do? Time off or deloads are the only option at that point. You cannot infinitely increase load or volume and frequency is clearly pretty limited by the fact that time is not infinite.
I also disagree with pumping volume endlessly. If you watch to get stronger, lift heavier. If you want to get bigger, get stronger. I mean $hit, Jonnie Candito has a massive physique for a natural at his low bf% and height.