Recommended · for some experience
JLCPCB solder paste stencil order and use
Why people recommend it
A walkthrough of assembling surface-mount boards with a stencil, solder paste and hot air, suggested as a faster and more dependable option than hand soldering small parts.
Watch for: paste can bridge between tight pads, as one follower found
In their words
I followed this guide and in fact I ordered the stencil from JLCPCB but my results are messier.
user875234 on electronics.stackexchange.com, May 2020. CC BY-SA.