Hey @guyluz11, thanks for your post.
We do have a defined Process for reviewing classic confinement snaps, but there is no need to request approval for strict confinement. You can take a look at the Snap confinement documentation for better understanding of confinement levels.
I do see though that you last revision failed the review process due to the use of the gpio-control interface. Given this interface allows privileged access to the gpio subsystem, it is reserved for vetted publishers. If your snap legitimately requires its use, can you please provide specific details about why your snap needs it?
Thanks!