No refueling. On a free ballistic coast none would be necessary since engines are used only for landing or takeoff; and those were all different engines with their own fuel tanks. No refueling is used in the case of bullets either. This point alone clearly indicates that you really don't have any background in ordinary physics, just like the "Internet Gurus" you prefer to believe.
No navigation computers The Apollo ship did indeed have a navigation computer. It was a 15-bit, 36K byte digital computer that was designed by MIT and built by Raytheon. There was also a built-in sextant that took sightings from the sun, earth, and moon. The Apollo ship was data-linked to ground stations, giving access to the big computers at the various space centers.
The problem with the Internet is that people believe what they see there without the ability to utilize other sources or knowledge of provable facts, let along reason things out for themselves.
I know that I will be unable to convince you otherwise because you wish to believe the Apollo landings did not occur. I assume you weren't alive at that time, I was twenty years old and witnessed a lot first hand. If you do actual research, you find that those landings did occur.
From your viewpoint, how do you explain the presence of the laser reflectors on the moon, the TV camera from Surveyor 7 back here on the earth, and the photos of the landing sites made by Japanese and Chinese overflights?
If you went to the moon at night you wouldn’t get all that solar radiation..... Geesh, even AOC knows that.