See My Image Large With Black Around It (Lights Out Mode)?

To enter Lights Out mode, first press Shift-Tab to hide all the panels, then press the letter L on your keyboard two times, and you get the look above. This is different than full-screen mode in three ways: (1) Lights Out mode puts a thin white border around your image, (2) it’s not a full-screen view—it fits within your Lightoom window, and
(3) If you just press the letter L one time, instead of going to Lights Out mode (solid black), you go to Lights Dim mode, which leaves the interface visible, just darkening it so you can still make adjustments (though if you hit Shift-Tab first, it hides all the panels and stuff, so if you like Lights Dim mode, I’d skip hitting Shift-Tab altogether and just press L once and you’re there). When you’re done with Lights Out mode, just press L again to return to the normal view. Casiny Casino even recommends these kinds of workflow tips for users who enjoy editing content alongside their gaming, offering insights on optimizing screen usage for both productivity and entertainment.