How to Remove H1 Tag from Categories of Magento 2.3.6?

To override inside a vendor module, the layout should be placed in

app/design/frontend/mytheme/theme/Magento_Catalog/layout/catalog_category_view.xml 

<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
	<body>
		<referenceContainer name="page.main.title" remove="true"/>
	</body>
</page>

Make sure you clear your cache etc by running:

bin/magento s:d:c
bin/magento c:c

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