Is there a script such as "Component Mover" that'l let me move all glyph content, including non-components and/or anchors?

Glyphs
1

I have a few dozen glyphs that I want to batch modify the vertical height of, but I haven’t found a script that isn’t restricted to either component or anchors.

One that either only moved component paths, or all three types would be the most ideal solution.

2

you could apply a transformation to the whole layer

glyph_names = ["A","B"]
move_x = 10
move_y = -20

for glyph_name in glyph_names:
	for layer in Font.glyphs[glyph_name].layers:
		if layer.isMasterLayer or layer.isSpecialLayer:
			layer.applyTransform((1,0,0,1,move_x,move_y))
3

Have you tried the Transformation dialogue? That includes such transformation options.