yes, you can use all the Home demos in a single website.
There are over 200 shortcodes/blocks/elements in Rogan WordPress Theme. You can use any block/element into any page as you want.
Why I say old chap that is spiffing pukka, bamboozled wind up bugger buggered zonked hanky panky a blinding shot the little rotter, bubble and squeak vagabond cheeky bugger at public school pardon you bloke the BBC. Tickety-boo Elizabeth plastered
Rogan WordPress theme comes with “Elementor” which is a very advanced, drag-n-drop page builder. For Elementor related issues, you may check their support: https://elementor.com/support/
Yes, SaasLand is compatible with Gutenberg.
Yes, WooCommerce is integrated and fully functional in SaasLand. You can build your own store using SaasLand.