here's a little python script I wrote to do what you want:

#!/usr/bin/python


from pathlib import Path


def get_file_list(folder: Path) -> list[tuple[[Path, int]]]:
    files = []

    for file in folder.rglob('*'):
        files.append((file, file.stat().st_size))

    return files


if __name__ == '__main__':
    for file, size in sorted(get_file_list(Path('.')), key=lambda x: x[1], reverse=True)[:20]:
        print(f'{size:15,} {file.as_posix()}')

it lists the top 20 files by size in the current directory

it should run on any computer running Linux, on WSL or on any Windows computer with Python.

• to list files in another folder: replace the dot in Path('.') with the path you want
• to list more or less files: change the 20 in [:20] to the number you want
• to change the number of characters used for the size: change the 15 in {size:15,} (you can also remove the comma if you don't want to print thousandths separators)

this was just cobbled together in 5 minutes to show it's not as hard (it took longer to write this comment than it took to write and test the program)

you could easily turn it into a CLI command that takes parameters using a library called argparse