GPS satellites orbit at an altitude of 12,500 miles. Not 22,000
Depends on what system you choose...
Well, actually by calling it GPS the system has been chosen.
When starting to split hairs, split all ot them: GPS is specifically the US American system. While it's often (incorrectly) used to refer to all systems, GNSS would be the general term.
The altitudes claimed range from 11,000 to 24,000 miles.
What value does the discussion about different orbits add to this discussion?
If there are no satellites used , it doesn't matter at which height they don't orbit.
If there are satellites, the difference in height is insignificant for the arguments brought forward in this thread.
The OP referred to Pakistan and it happens that the altitude claimed for the system in India is 22,000.
See above. The author asked about GPS and NASA; not about Pakistan.
The Indian Regional Navigation Satellite System (IRNSS) is not operated by NASA and it's not even global.
That is why I introduced the figure of 22,000.
See above.
Introducing arbitrary orbits does nothing but deflect from the actual question.
can any flat earther explain if there is no satellite how GPS works?
So far I've only read some vage claims, why GPS would be suspected to not work with satellites, but no viable explanation, how it would work otherwise.
As GPS is well documented (most aspects verifiable by anyone), it very much looks like, GPS is actually satellite based.
iC