Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.4.1
You are evidently working on Windows. On my Mageia Linux system,
libhidapi is included and comes as part of the standard software. But
the current version of Mageia still comes with avrdude 6.3, so I did not
try 6.4