I remember when I was a teenager, a friend of mine who is deep into Star Wars magazines and reading all the other books in the Expanded Universe…he said that Jedi flew their ships using the force (for navigating, targeting). So when Obi-Wan Kenobi told Luke not to use his targeting system and use the force instead he was teaching him to fly his X-Wing like a Jedi would…
Was this ever a thing? A lot of his other stuff checked out on an EU level… but never heard anything close to this again til the lightsaber control bit
I guess you could almost kind of put it that way indirectly. But no, the Force does not fly their ship. But It does help them fly their ship BETTER by increasing their natural abilities: instincts, intuition, reflexes, and prediction. The Force can't make someone into a pilot who isn't already. (I'm looking at you, Rey!) Of course the Jedi uses the Force
while flying (not
for flying), just like they should use the Force any time they might have a need.
For example, when Anakin was the only human who can pod race without getting killed, that's not because the Force flies for him. It's because the Force HELPS guide his hands in an almost prescient way, similar to the way it helps guide the hands holding a lightsaber to block a blaster bolt. The lightsaber must already be moving before the trigger is pulled. So for Anakin, this had the effect of vastly increasing Anakin's reflexes. This is why "he was the best star pilot in the galaxy".
I think for Anakin especially, seeing the future was his particular "super Force power", even seeing just hundredths of seconds in advance to have perfect reflexes. Luke, being his son, inherited some of that. Which is why Luke and Anakin are the only ones ever being shown seeing future events (okay, Yoda, but always unsuccessfully), and why other Jedi (like Obi-Wan) are crappy pilots.
As Obi-Wan put it, the Force "partially" controls your actions, but it also obeys your commands. It's a partnership, not a surrendering.
In the case of Luke and the Death Star, no, the Force was not flying, Luke was. But he was flying "blind", similar to the way he was blind going against the remote on the Falcon. By reaching out with his feelings, he "could almost see the remote", and "almost see the exhaust port". Instruments can cause us second-guess ourselves during crunch time, so Luke turning off his targeting computer helped him focus.