I've been trying the COSMIC store and it looks like it killed my apt somehow. Apt says that there is a version mismatch between some libc6 packages, but I checked with dpkg and it all looks correct.
Apt says that I've a newer version of some packages but that is not true. Is there any way to fix this?
EDIT: Fixed formatting
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My best guess is that the Debian Unstable repository doesn't have all the libc6 packages updated to the same version. I might just have to wait and see what happens
Looks like that might have changed, libc-gconv-modules-extra has an i386 package for 2.42-5 added at like midnight UTC+1. Given the sources only update every 6 hours, might be you found an unlucky update in between?
Struggled to find a time for the release, but the changelog has one, unsure how true to package-available time that is: