Just to find my systems, the ship markers make it easier to find said systems, using the manual GalMap controls.
It's a secret conspiracy between UC (giving us only 100 bookmarks) and the Sidewinder vendors, who have inventory piling up.
I dare you to find 3 systems in
OUTBREAK and
ANARCHY without resorting to a third-party tool.
Replace this with any combination of
State and
Government to your liking's and get back at me on how great the galaxy map is.
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Plot a route that happens to cross a neutron/dwarf star, act surprised, supercharge your FSD, jump and tell me how you wasted your supercharge because the navigation didn't re-adjust?
Or if you do manage to set-up a jump tell me more on how it puts you back on track to your destination!
Or supercharge your FSD in a Neutron star, fiddle with the boost level meter and tell me how you don't have to restart the galaxy map for it to pick-up on your real jump-range instead of the pre-fetched false number that shows up after you fiddle with it.
OR, see these fine blue lines in the galaxy map going to nearby systems? That indicates your jump range. Good to visually see how far you can jump in a specific direction. "Available destinations" if you will. Except the lines stop at 110~ ly or so. Meaning any supercharged FSD surpassing this, (at the most critical moment where you'd like to use this feature because everything else is lacking,) leaves you without this handy feature.
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So back to your point, sure its a nice visual feature for newcomers. For the ones that use it however.