Welcome to the forum from Maryland. I usually put at least one coat of gesso on a canvas panle or a stretched canvas . I like to fill in the tooth of the canvas a little. I tried 3 coats and sanding in between each coat and found it was to much, it made the panel to smooth for my likes. I like to see the grain of the canvas a little. Try to see what you like. I like a canvas tooth that lets me spread the paint with little drag on the brush. I hope I explained this right. Good luck.
I can only try to paint, what god created.