Emulsions are lighter than Western lotions are mostly. They vary of course, Yes you can use one as a moisturizer. Holika Cera one was creamy (not sure if they still make it), but sets matte. Some are very light.
Also, aloe gel isn't really moisturizing. It will light creams for sure.
What about a gel cream? Rosettes (can be sticky going on) is pretty heavier. If you use less. Not heavy or sticky, but still moisturizng is CosRX Snail AIO Gel cream (has silicone). Ceracolla Gel Cream is lighter than Rosettes and not sticky but still has some moisture You can add oil. Doesn't play well with other moisturizers.
You can do whatever feels right for your skin, as long as it's giving you the results you like.
You also might like a facial oil & adding a few drops to it. One of my favorite "more emollient" mixes is the Holika Holika Good Cera Emulsion with a few drops of camellia oil. The right facial oil (probably something lighter for your preferences) can really help give emulsions some oomph when it comes to oils.