As a quick workaround I think you could purge linux-headers-5.4.0-050400rc8-lowlatency manually by apt and then use linux-purge to purge the rest associated packages.
I have required linux packages to be completely installed in normal purging mode to keep things simple and clear for the script and user.
So did you try the --fix mode?
As a quick workaround I think you could purge linux-headers- 5.4.0-050400rc8 -lowlatency manually by apt and then use linux-purge to purge the rest associated packages.
I have required linux packages to be completely installed in normal purging mode to keep things simple and clear for the script and user.