I haven’t played SC, and i haven’t played Eve in a while, but here is some readily available information:

1. Eve has been in release state for 20 years.
2. Eve has an ancient dedicated player base that probably knows the game better than the devs.
3. Most old players place a priority on helping new players and keeping the game healthy.
4. You can’t walk around outside your ship.

In Eve, you control your ship in a 3D view more akin to a strategy game. In SC you pilot it from the cockpit like say Elite Dangerous or other space sims.

Eve Online is much much more strategy (third-person) and diplomacy. You don’t get anywhere without getting involved deeply with other player groups (corporations). It’s more of a business sim than a space sim.

SC is much more pew pew and first-person and teamwork will be much more casual.