I saw this previous feature request, but I don't think this has been implemented: Improve display of legends with many series · Issue #11355 · metabase/metabase · GitHub
It would be ideal to have the option of changing the position of a visualization's legend AND to be able to have word wrap for legends instead of losing the text to ellipses.
Ideally, any visualization would give the option to show/hide legend, position legend at the top/bottom/left/right, and enable/disable legend word wrap.