Would it be nice to have? Sure. But there are tons of alternatives to Photoshop that just don’t compete on market share, despite photoshop lagging behind in many areas.
If companies were backing an OSS editor though, Krita is by far more favoured by professional creatives. It’s more familiar coming from Photoshop, has better extensibility+Python scripting+Qt which is great for pipelines and has a much better handling of color science and other features important for professionals.