Is there such a thing as an EU resident in the treaties? Again, I don't think so. EU countries grant each other's citizens rights. They have not agreed to pool immigration policy afaik. (I would be pro EU resident status for non-EU citizens, subject to common, EU-wide immigration policy.)
Comments
I understand how things currently work, point is that they are not currently satisfactory.
The general situation was unsatisfactory before Brexit as it remains today.