Back on Windows there was this feature I used a lot that showed all files inside of sub-folders, and I think you could also do that by putting an asterisk in the search bar. Any way to do this in Dolphin? It's fine if the folders are also visible, but I want to see all the files inside sub-folders.
If this sounds unclear, imagine putting something in the search bar that makes it display every file in the directory, that's what I'm looking for.

This only works on the desktop or with the folder widget. But there is a longstanding bug. That is, previews show, but not all servicemenus work while they do in dolphin itself.
If I understand you correctly https://imgur.com/a/snezHsu

Here's an example using Windows. It's a directory with 3 folders, each containing 3 images of objects of their respective color.
https://files.catbox.moe/xcvir4.png
https://files.catbox.moe/bmyge4.png
Note how adding an asterisk to the search bar makes it show all the files inside folders in the current directory, it shows the folders too but that's fine. I'm looking for a way to do this in Dolphin, searching with an asterisk doesn't work.

I figured it out, you just press enter on an empty search bar. However, it only seems to work in folders indexed in File Search settings.