Sometimes players mistake this for an early intention to support same-sex romances only to get scrapped down the line, but this is fairly common practice in game development. This was already possible long ago as both voice actors for Commander Shepard, Mark Meer and Jennifer Hale, recorded all dialogue for both characters regardless of any gender-specific related content.
Thanks to new technology, modders can dig up official unused voice files found in Mass Effect: Legendary Edition to implement more same-sex romances than are officially supported in the trilogy, such as a relationship between FemShep and Miranda Lawson.
