GPS guided munitions like Excalibur are useless against peer adversary. Costs as much as 100 regular rounds and as 200+ FPV drones but has zero accuracy thanks to EW and jamming.
And yet, more than a year ago:
The US gave up sending Ukraine Excalibur guided artillery shells costing $100,000 because they rarely hit their target, report says.
I mean, the US isn't flying our EW aircraft over Ukraine.
So yeah that is in line with what I have said.
US doctrine is based in air dominance.
Also, most Excalibur rounds do not have laser guidance kits. Those are much newer and more expensive. We may have given Ukraine a handful, if that. Still requires laser designation by airborne or land forces, but can give you excellent accuracy even in completely denied GPS environments and against mobile targets.
To my knowledge there still isn't a laser guided mortar in the US inventory with dual mode laser terminal guidance. HEGM project was cancelled in 2018.