Putting in an 20 Amp GFCI Electric Outlet

20 Amp Self-Test SmartlockPro Slim Duplex GFCI Outlet, White

In electrical wiring, black wires are called "hot" wires and white wires are called "neutral" wires.
Black wires carry electricity from the breaker panel to the outlet. They are hot and should be treated with extreme caution.
White wires carry unused electricity and current back to the breaker panel. They also can carry power and can still shock you.
Grounding wires are the bare copper wire.
The black wire should be connected to the brass terminal, and the white wire should be connected to the silver terminal. This ensures the outlet functions properly.
While the physical alignment of the wires is not critical, it is good practice to keep the wires neat and tidy to avoid any accidental shorts or damage.
If your outlet has a ground wire (usually green or bare copper), it should be connected to the green terminal. This is essential for safety.

Ensure that the wire gauge is appropriate for the circuit to prevent overheating. Typically, 14-gauge wire is used for 15-amp circuits, and 12-gauge wire is used for 20-amp circuits.
as long as the black and white wires are connected to the correct terminals, their physical alignment does not affect the functionality of the outlet.

GFCI stands for ground fault circuit interrupter, and it's a safety device that helps prevent electric shock. GFCI outlets are required in certain areas of your home, such as kitchens, bathrooms, and laundry rooms, where there's a risk of water coming into contact with electrical circuits.

(By-the-Foot) 4-Gauge Solid SD Bare Copper Grounding Wire
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Nice video but please change your title to "GFCI." Also, even though you used only the "LINE" side (HOT) there is also a "LOAD" (piggyback other outlets) side, and the distinction should be noted; there is a difference. If you had TWO black (HOT) wires and TWO white wires these "pairs" would've needed to be installed into their proper openings. Great camera work BTW!