After obtaining the GPS and the Quantum Suit, Luke wasn't in a hurry to set off.
Things that were too easy to obtain wouldn't be treasured properly, not even the Pym Particle.
In any case, it didn't matter when Scott returned to 2023 – it would only have been five seconds there.
So, during this period of time, the Level 2 clone simply used the Knight alias to take Scott around to 'inspect' this world.
Of course, important information wouldn't be divulged to him, but it was still possible to take him to spar with the Bat Squad and learn about the work of the Justice League, the Avengers, and New SHIELD in this world.
When Scott first heard about the Justice League, he couldn't help but ask with a pale face, "Um, don't tell me you have a Daily Planet newspaper here? Is there a young reporter called Clark Kent?"
Luke naturally understood what he was afraid of. "Let me investigate."