Our intention was to never have manually ordered relations but with the v4 and the new population logic you can sort relations using any field (date, whatever).
Well but in reality one does have to manually order them. Because some orders are contextual, not by field.
To give you an idea: a customer literally rejected Strapi entirely and threatened to pull out, because to them, not being able to manually order e.g. Tags was a showstopper. I managed with the workaround - which now will not work any more in v4 at all?