Interesting. My anecdotal experience with modafinil is that I get extreme anxiety and elevated heart rate without any additional focus benefits. In fact, it detriments my ability to focus.

Adderall on the other hand, while stimulating and euphoric, gets the job done. But it works so well that I have trouble focusing without it now. I’ve tried tapering off multiple times but always go back to it when my work quality suffers and I’m not contributing to tasks that my team needs done.