The alignment issues are supposedly solved in 1.18 (I'm using 1.19): "In the screenshots above, you can see how our AtlasEngine rewrite in 1.18 Preview fixed powerline rendering. We now have no weird gaps, no cut off glyphs, and no shrunken glyphs."
Are you KIDDING ME RIGHT NOW? Zoom up of their supposed golden screenshot, which shows both a glyph that is both too tall and has an edge rendering problem: