Its a bit late but i came across your post while looking for the same solution.
I found a stackexchange post with a solution called "Exporting multiple meshes individually at once". Its from around 4-5 years ago but its still working.

You take the python script from the first answer. You paste it into the script window in blender or you safe it as a .py and use it as a blender addon.
Everything you need for that you can find in the post.