About corruption and reliability of data being stored, regardless of whether or not it is sensitive data or day to day files, is not entirely the responsibility of the Qubes OS itself. There are many factors to consider, the software being used, the filesystem being used, the components of the distro being used, and etc.
This is based on my personal experience on using qubes on a daily basis for almost over a year already. So far I've only encountered corruption of data through the use of qvm-copy/qvm-move commands to move stuff from vm to vm and this is a rare case too since it probably only happens once or twice over a hundred times. With this in mind, the LVM thin fs of Qubes I believe, is extremely reliable. So with that I believe the problem most likely leans more towards the software that you are using, with respect to the distro that you are using as well. I haven't had much trouble using any software so far in my experience of using qubes provided they have the right dependencies installed, with respect to my usage of fedora minimal template. Despite that however, I agree with your sentiment about USB devices and the detaching notification though I am not entirely dependent on it since I can go ahead and confirm myself whether or not the usb device was detached by running "sudo lsblk" on the qube where the USB was attached and on the sys-usb qube itself. Convenience-wise, it is bad yes and there is definitely room for improvement. Also mind you that flash is a HUGE BLOB of SECURITY RISK. If you're using qubes for security reasons then using flash is really counterproductive against it not unless you really know what you're doing. -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to firstname.lastname@example.org. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/94143ecf-7500-41e0-8d9b-ab6f154dad02%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.