I think that the addition of labels, categories and floors is an excelent addition to HA. I particularly like the new data tables and the ability to slice and dice and sort. The additions comming in 2024.5 will add even more functionality.
This said, I think there is a missing piece that would add even more value: a data table that listed all the devices, entities (including automations, scripts, helpers etc.) relating to a given label or labels.
This is because, I would like to use labels to label all the ‘components’ that are used in a particular use case. For example, I have a use case that tells me when my oven has reached temperature. This uses a helper, an automation and a script (along with an entity). I would like to label all of these with ‘Notify when oven is up to temperature’ , and then see all these components in the same data table. This would make it easier to maintain. All the pieces are accessible in one place for amendment or deletion.