macOS 13.3.1 can't open files with names in Unicode normal form C

macos-13.3.1-unicode-bug.py

import os
import unicodedata

def dump(s):
    for character in s:
        print('\t{}\t{}\t{}'.format(
            character,
            ' '.join([hex(x) for x in character.encode('utf-8')]),
            unicodedata.name(character),
        ))

filename = 'français.txt'
filename = unicodedata.normalize('NFD', filename)  # Comment out this line
dump(filename)

try:
    os.remove(filename)
except FileNotFoundError:
    pass
with open(filename, 'wt') as f:
    print('Bonjour!', file=f)