Visualizing GeoTIFF containing multiple GeoTIFF data sources (APPEND_SUBDATASET) in QGIS

I have a GeoTIFF that I have created in the following manner:

gdal_translate first_grid supergrid.tif

gdal_translate second_grid supergrid.tif -co APPEND_SUBDATASET=YES

Dragging this into QGIS appears to only allow me to visualize the first dataset used. Is there some option to allow me to view all added datasets? This does seem to work if I use a GeoPackage instead of a GeoTIFF.

I can use software like Teledyne Caris BASE Editor to successfully view the datasets within the supergrid GeoTIFF, so I’m wondering if I am just missing something in QGIS.