Advice: Migrating to XWiki from Dokuwiki

Is this available to use directly in the WYSIWYG editor? I’ve written some html pages using bootstrap 4.5.1 that I’m planning on using as a template for new pages, just wondering what this will look like in XWiki.

How would I go about using Bootstrap 3.4.1 features in XWiki, would it be best to use the html macro and ensure the code uses 3.4.1 syntax or is there a way to use it within the editor?

Thanks,
Jonny