Here are some examples of how to debug UI Components in Magento 2.
require('uiRegistry').get(ui => console.log(ui.name));
require('uiRegistry').get('checkout.sidebar.guarantee');
require('uiRegistry').get('parentName = checkout.sidebar');
require('uiRegistry').get('parentName = checkout.sidebar, index = guarantee');
require('uiRegistry').get(
ui => ui.parantName == 'checkout.sidebar' && console.log(ui.name)
);