is there a way to remove the additional information page in the checkout flow as it is not needed for our app.
Hey, my response may be late but I used the WooCommerce Checkout Field Editor plugin on my website to remove the additional information page from both my website and app.
It think they only support one plugin for this according to their article, WooCommerce Checkout Field Editor - AppMySite, so I suggest you use this plugin as well.