Sorry, I am running the 3090 on a rig running an Intel 12-7000KF. I haven’t had much experience with Optimus configuration, since I don’t think the 1650 has Optimus either.
I haven’t gotten Starfield to run on the 1650, but that was a spec issue. What kind of card are you trying to run it with? Might just be that Starfield is too intensive to run, which was the case for me.