I use the YAML configuration for the web UI. It works fine.
I recently discovered in Visual Code the extension “Home Assistant” which is very useful but it also shows that the resources
section of my ui-lovelace.yaml
file are “DEPRECATED”:
Is this true?
I commented them out in the file, refreshed the browser and everything works. On the other hand the instructions for the extensions, installed via HACS, still mention the need to add that part to the YAML file.
EDIT: well, after restarting HA (and not merely refreshing the browser) I got the red-coded issues about missing cards. Looks like it is not deprecated at all finally.