I built the circuits on a separate breadboard and got numbers that are a little different. I have another MKR Wifi 1010 so I plugged this into the same breadboard and I got the same answers for both Arduinos. This other MKR Wifi 1010 is brand new, so no issues with possible damage.
Voltage PIN to Ground across one of the 8 LED plus 220ohm resister paths is 2.74V
LED Voltage drop is 1.89V
Resistor Voltage drop is 0.84V
Current through the path from each PIN to GND is 3.69mA
Total current through all 8 LEDs is ~28.9mA (this seems to bounce a little but I have an old multimeter)
