Doug writes:

I don't honestly know what the rules are for
descent in Class G with no radar and no IFR clearance.

Class G is so close to the ground in most locations that you'll only
be in it quite briefly during descent (or take-off), anyway, which I
presume is why there aren't many rules concerning that airspace.
Anyone who cruises for an extended period in Class G on instruments is
either way out in the boondocks or very bold or both.

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