I ran into this as well… this is a 32-bit vs. 64-bit problem.
You’ll need to use the 32-bit version of the Linux distribution in order to download the Seeeduino:bossac tool. I wish someone would compile and distribute this for 64-bits, as I would prefer to use that OS instead. I found it quite unpleasant to reinstall the OS just because this wasn’t compiled for 64-bits.
Once you get past that, though, you may run into serial communication issues with XIAO. I’ve tried to reliably program these chips using arduino-cli, but my experience has been sheer misery.
I suspect, if you want to use the XIAO industrially, you’ll need to use the SWD method, where you use another board with an SWD programmer on it, and tell that to program your XIAO chip over the two SWD wires (the left-most dots of the four dots located under the XIAO, where the four dots are oriented towards the left of the chip… top dot will be your SWDIO, bottom is the SWDCLK). I’m still trying to work out how to do this, but I suspect it’s the most reliable method since it bypasses bootloaders.
(More details on this here: VCON::Docs and here: Seeeduino XIAO COM Port Problems - #12 by cpq ).