Lightroom and Photoshop adding a dimming effect to my photos

I've been editing my photos, removing only background people in both lightroom (Classic) and photoshop (2025).  No other edits. This is on my MAC OS 14.2.1. When I download them and view them on my iPhone next to the original, the edited version is dimmer.  It's not about calibration because I'm not making any edits other than removing items from the background.  And I'm viewing the Original Photo right next to the Edited Photo on my same iPhone.  Why is Adobe doing this and how do I make it stop?  It's the same dim effect whether I use Lightroom or Photoshop.  Exporting to RGB Color in photoshop and sRGB in Lightroom, I believe.