Hi Jorge,
Thank you for contacting us!
1. Yes, we plan developing Gallery, and Gallery it's almost ready for Joomla 4
2-1. Sharing pictures on Instagram is not possible, since Instagram doesn't allow to do it.
2-2. It's already available, find more at this screen:
www.balbooa.com/images/blog/gallery/gall...-single-category.gif
2-3. This is already available too, here is a demo:
www.balbooa.com/demo/filter-tags-and-colors.htm
Let us know if you'll need more assistance!
Regards,
Artem, Balbooa.com