Is there a gfci in the kitchen? Current Electrical code requires the kitchen outlets to be on a GFCI. Not every outlet has to have its own GFCI. As long as the outlet you are talking about is de-energized when the kitchen GFCI is tripped, then that “regular” outlet is indeed on the GFCI leg of the circuit.

In addition, it is very common to pull one 20 AMp bathroom circuit that goes to a bathroom, place the GFCI in that bathroom, and then run to the other bathroom(s) outlets off of that GFCI. Long and short, trip the GFCI in the one bathroom, off other bathroom deenergizes, both are GFCI protected.

Check to see if theyre on a gfi breaker. they could also be on the load side of a gfi outlet downstream. meaning, the line (power) goes to a gfi and every outlet downstream is wired via the load side of the gfi. they would all have the same protection.

trip other gfis in the kitchen and see if said outlet has power still.

code is gfi protection 6’ from the water source.

When you say your soon moved into a "new apartment" did you mean it was lterally newly built, or simply new to him? It's good to have GFI protection by such water sources, but the code requirement is most likely whatever the code was when the apartment was built. GFIs first began to be required in certain locations in the 1970s. If the building is an older one, it may be code-compliant in the sense that there is usually no requirement to continually bring a building into compliance with code revisions. I'm not saying ignore it; but just be aware that you may not be able to pressure the landlord to do this by citing current code if it's an older building.

What Dave said. If there's a breaker with a test button or a receptacle somewhere with a test button, push it and see if all the receptacles you are worried about don't shut off (i.e, they are protected by that device).

It is a older apartment building. Probably built in the 70's. Thanks for the input. I will test to see if GFI in the one bathroom turns off other outlets. The one bathroom that does have a GFI appears to be fairly new GFI. It is all white whereas the others, non-GFI, are off white yellowish color and look to be the original. It does look like a very well kept building. Even has pretty planting beds and newer carpet in halls, nice elevator (3 level plus under ground parking), community room, probably can be reserved with nice furniture.