Field Maps is not displaying labels the same that ArcPro/AGOL is. Labels were created in ArcPro. AGOL is honoring position of labeling from Pro. Field Maps is offsetting the labels from the linear feature that should be positioned Centered Horizontal per ArcPro properties.
Screenshot from AGOL
Screenshot from Field Maps
Why might this be occurring?
I am not following. AGOL did not create another map. Not sure why it would unless I created a new map in AGOL using the Hosted Feature Layer. Even in doing so, a new map created in AGOL is correctly displaying the labels, but Field Maps still does not label the lines correctly.
What I did was, the map from ArcPro was shared as a web map to AGOL. The first screenshot is that Web Map in AGOL which correctly displays the labels. The second screenshot is the same Web Map opened in Field Maps that does not display the labels correctly.
I found in another post that Field Maps does not support the Maplex labeling. This appears to have solved this issue. However, there does not appear to be a way with regular labeling to repeat/duplicate the label along a segment?