You’re not creating more stick, but you’re making the stick longer. The pressure wave in the stick will travel at the speed of sound in the stick which will be faster than sound in air, but orders of magnitude slower than light.
Everything has some elasticity. Rigidity is an illusion . Things that feel rigid to us are rigid in human terms only.
Pressing “Launch” is the same whether you’re in Epic or Steam. I have like 40 games on epic and I’ve paid them exactly $0. In the same time I spent quite a bit on Steam. It’s hard to see what value Epic is getting out of me from this.