Welcome.
I have to you today a script that allows you to edit the mesh in the UV / Image Editor. The operation is similar to a script written for Blender 2.4x.
Once installed in the UV press “W” and there are new options.
Distribute Line is used to deploy vertex at equal distances from each other, in a line between the first and the last vertex.
yep, dreaming of some workflow like this: straighten/distribute the uv boundaries first and pin them, then the addon could straighten all edges inside at once…
Additionally i wonder if it is possible to distribute verts in equal spaces in a circle.
like: selection to sphere ->distribute with same spaces-