Screenshots - Question

[𝕯𝖎𝖆𝖇𝖑𝖔]

I have a question about taking pictures in such games.
I played a few games in which the photo gallery does not display pictures in full screen, but they are like in this game, e.g. sliders or are displayed in another way.
I would like to take nice photos but you can see these sliders or other crap in the background and is there any method for this?
Sometimes I see in the community in the photos that someone posted pictures in full screen nicely visible without unnecessary things in the background. Such people are involved in the production of the game, have access to full photos and upload these pictures?
Or is there a way for everyone to do it, for example in the Lollipop game?

[SuperHound]

Did you ever find a way?