Anything's an improvement over:
"My computer froze."
"It put some message on the screen."
"What did it say?"
"Something about an error."
"I dunno. It had some numbers and letters and stuff."
"I already rebooted it."
Personally I would rather have a more sophisticated crash dump system, like other OSs, because whatever is going to fit in a QR code isn't going to help much unless you're looking up known issues in an enterprise Linux vendor's bug database. That's assuming they can cram a stack trace into QR codes, AAAAND you have a problem that leaves a predictable stack trace.
I don't remember the last time I had a Solaris system crash that didn't leave a dump (try not to giggle). It would have be be way back pre-ZFS, on a janky server without a dump partition. I'm also reading that Windows saves memory dumps to the page file going back to XP.
You go into the average Linux environment and even if it's not a "paid support is for wusses" camp, you are _EXTREMELY_ unlikely to have anything of value to send to support. Maybe your hawt X86 firmware will have logged an issue! ROFL.
Reboot and hope for the best