Never cared much for either. Both are just insanely overpriced "maker" crap that ultimately comes from China anyway. You can get cheaper at AliExpress, LCSC etc.

Adafruit manufactures its own PCB's in New York, though the actual chips, leds, etc. come from wherever, which is often China.

They assemble their PCBs in New York, there's no chance they are actually manufacturing the PCBs themselves there however. PCB manufacturing is an ecological disaster.