Of course in both tracks, it's no longer only about your own contributions and impact to the team, but that your contributions and impact now translate to everyone else you work with so that they're able to improve their own contributions and impact. Or in another way, is what you're doing helping everyone else do better?! So even though that sounds straight forward, showing that at performance review time can actually be really challenging if you're in a tech role vs. a people management role.
I've heard the complaint that some of us shouldn't be EMs, but I'm a firm believer that if it's something you enjoy, you can absolutely learn how to be a great EM. I would only consider sticking with the tech track if you enjoy the tech work more.