Wix on a desktop is a pain in the ass to work with, it's basically impossible to use on an iPad.
In general don't use Wix, really, it's not easier nor faster to make a website on it than using Webflow, Webstudio, Ycode or basically any other builder you can name. None work on iPads though, as the iPad's Safari is a mobile browser (and every browser you can install on an iPad is a reskin of Safari) and as such does not have access to the full feature set of a desktop browser.