@kkebreau #Debian has 25034 in stable, by external statistic tool counting. Of those 25034, 9066 (so 44.9%) are supposedly up to date.
In #Guix we have:
Number of packages: 6780
Number of outputs: 7074
(which might or might not take my own repositories in counting), external stats say 5971. Of those 5971 3025 are supposedly up to date, so 61.2%.