Though true I have literally never had my system get corrupt or inconsistent during failed dpkg/apt from power loss, hang, filesystem going ro, etc. It's very reliable.
I've had older rpm & yum/dnf failures multiple times leaving me in weird inconsistent states from crashes or power losses etc. not conclusive but anecdotal experience - It's also possible it's been improved.
Meanwhile you can disable the file syncing with the apt preference dpkg::unsafe-io (google will be required for the exact syntax and file in /etc/apt - fairly sure you can cmdline it also)
I've had older rpm & yum/dnf failures multiple times leaving me in weird inconsistent states from crashes or power losses etc. not conclusive but anecdotal experience - It's also possible it's been improved.
Meanwhile you can disable the file syncing with the apt preference dpkg::unsafe-io (google will be required for the exact syntax and file in /etc/apt - fairly sure you can cmdline it also)