True, but as someone doing physics, I’ll say both is fine. You can push amps by increasing voltage, and also pull amps by varying resistance. After all, ohms law basically is the balancing of theese three.

And if i’m gonna go too far pushing amps is the most sensible thing. The thing we call pulling amps is just decreasing the resistance against the push(voltage) so that pushing becomes more effective. And also what I just called push is also a pull, at negative terminal.