PLANE primitive on Blender 2.91

I think this is an easy thing but I don't know where to send this suggestion for the developers. The new add primitive tools are ok, but the PLANE primitive is missing. Draw a plane shaping in the scene just like the "add cube" tool does is something that is missing on Blender 2.91.

Where can I send this suggestion for the developers?

Video showing the idea and a use case. twitter.com/i/status/1308386508580282372