Superior pre wounds are all I use.
https://www.superiorthreads.com/bobbins/ I use Glide pre wounds with Glide thread when using Glide for machine quilting. All other machine quilting threads or thread for piecing I use Superior pre wounds. Lots of great info about prewounds on the website.
Typically, prewound bobbins are geared to machine embroidery, specifically commercial machine embroiderers.
Not true anymore. Prewound cotton or poly bobbins are made for piecing and machine quilting. Most LA buy them by the gross.