In NR, Does the ARFCN used to identify a frequency at the lower side of the channel bandwidth rather than a frequency at the center of the channel bandwidth??

My understanding is, The ARFCN should point to the middle of channel bandwidth. 38.104 shows how a raster frequency maps to the resource element in the channel (k). Based on the channel bandwidth, the extremities are calculated by UE.

Arfcn is in the cneter of the channel

You may be referring to “point A”