This is quite simple with DPL.

However, the DPL extension is not activated by default, so you may have to request it with support first, unless your wiki has it activated already.

If DPL is present, it's as simple as this:

{{#dpl:
|imagecontainer = PAGENAME
}}

The easiest way is to go to Special:AllPages and select "File" in the namespace menu!

I'm looking for the file list for one page

"The easiest way is to go to Special:AllPages and select "File" in the namespace menu!"

That doesn't do what they want, at all?

I cannot think of another way than using DPL, actually.

My bad, I misread the post as the "on a singular page" describing the list rather than the files ':) only trying to help

In that case I'd agree that DPL would be the only way (at least the only way that I know of) to achieve exactly OP is asking for. It's only available upon request though, and your wiki's loading times would increase drastically if you enable it.

Do you only need to do this for one page? If there aren't too many files, I'd say the easiest way is to get them manually.

"your wiki's loading times would increase drastically if you enable it."

Activating DPL does not increase a wiki's loading time.

Only wrong or excessive use of DPL would do that, and also only for the pages it is used on.

A lot of wikis have DPL activated, including my home wiki. It can be super useful for all kind of things.

Because of its great power, DPL increases server load and can result in significantly slower page loads for wikis that use it.

Quoting from the fandom help page ^^

Come to think of it though, technically you can just copy the contents of the page in source mode, paste it in chatgpt or some other ai, and ask it to generate a list of all instances of "File:____'', ignoring everything in the double brackets that comes after the first pipe symbol |. Less elegant than DPL, but a valid workaround I believe

(unless you have a gallery on that page, in which case the prompt should be adjusted slightly)

With some coding this should also be achievable with a local program

"Quoting from the fandom help page"

The key point here is "... can ..."

DPL only increases server load for the page(s) it is used on. That's why it shouldn't be used multiple times on the same page (the help page says 1 - 2 times only, but I've seen it used over 20 times on the same page on some wiki (Memory Alpha) without noticeable problems).

That's because not every DPL call needs the same amount of resources. However, some calls can use a lot of computing power, and therefore slow down page load. But then again, only for the page(s) it is used on.

Now if for example you would use DPL for a template that is used on almost every page, directly or indirectly, that's when it would significantly affect the whole wiki.

Just some examples: The dev wiki uses DPL on over 3600 pages. Community Central on about 1000 pages.

On my home wiki we use it to create character and episode galleries out of categories and some other criteria on over 100 pages. No slower page loads have been observed, although it creates galleries with over 100 images.

I'll ask my bcrat bout it