Launchpad currently recommends translating glibc in Ubuntu Jammy.

Template "libc" in Ubuntu Jammy package "glibc"

Language Status Untranslated Need review Changed Last Edited By
Cherokee 100.00  100.0% untranslated 1428 1428 0 0
Dakota 100.00  100.0% untranslated 1428 1428 0 0
Hawaiian 100.00  100.0% untranslated 1428 1428 0 0
Inuktitut 100.00  100.0% untranslated 1428 1428 0 0
Lakota 100.00  100.0% untranslated 1428 1428 0 0
Louisiana French 100.00  100.0% untranslated 1428 1428 0 0
Ojibwe 100.00  100.0% untranslated 1428 1428 0 0
Pennsylvania German 100.00  100.0% untranslated 1428 1428 0 0
Spanish 008.75  91.24649859943978% translated  8.753501400560223% untranslated 125 125 10 10 310 310 2021-05-04 18:12:31 UTC Santiago Vila Doncel
Tlingit 100.00  100.0% untranslated 1428 1428 0 0
Yiddish 100.00  100.0% untranslated 1428 1428 0 0
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Key to this table: “Unchanged” means Translated
and “untranslated” means just that, Untranslated

Other versions of glibc in Ubuntu