Fairphone 6 flash_FP6_factory.sh seems to hang

/e/OS Devices Fairphone
6

don’t miss the ./ prefix

piero@HP-p6-2038fr:~/Téléchargements/IMG-e-3.2-a15-20251022539003-official-FP6/bin-linux-x86$ ./fastboot --version
fastboot version 33.0.3-8952118
Installed as /home/piero/Téléchargements/IMG-e-3.2-a15-20251022539003-official-FP6/bin-linux-x86/fastboot

piero@HP-p6-2038fr:~/Téléchargements/platform-tools$ ./fastboot --version
fastboot version 36.0.0-13206524
Installed as /home/piero/Téléchargements/platform-tools/fastboot