Actually, I’m wearing my Eidolon with a Gen 5 G19 right now. Yeah, the slide stop lever on the right rubs on the outboard wing thing. I plan to address that with a dremel and/or exacto knife shortly. As is, it ain’t right, but it ain’t bad.
ETA: The Eidolon is my go to holster. I carry everything from a G26 to a G34 (and now the 19.5) with it. Like it.