Termux, then you can navigate to the folder with cd and list the content of the folder with ls. You can save the output to a file ls > folder.txt .

You could download a terminal app (termux from f-droid) and run ls > file.txt. You would first want to cd (change directory) to the location you’re interested in. This will generate a file.txt with the output of ls (list files command).

You can use Termux to generate a list of files in a directory and copy that.

I loath the name but automate can do that and much more. I have a flow set up that emulates the /tmp directory.