Normally, in ArcMap Print layout, enabling the grids and specifying the intervals would show the curved grids as in the following map:
But in QGIS, enabling the grids (1) does not have an option of showing the coordinates in DMS, (2) reveals wrong coordinates, (3) is not curved like in the previous map:
I assumed it was an error with the projections and made sure that the map was assigned the same CRS (WGS84 - UTM Zone 48N) as the project, but the last photo was still the result.
I saw a "solution" that changing the projection to EPSG:4326 WGS84 would supposedly allow for DMS units to be shown, but changing the projection to WGS84 returned an ugly output:
where the coordinates were still incorrect.
How would one go about (1) displaying the correct grid labels as DMS, (2) show the gridlines in a curved fashion on a map projected to UTM on QGIS 3.18.1?