Hello! These tags are indeed new; here is the discussion about them: https://c.osm.org/t/tagging-names-transformed-from-one-language-to-another/125144

en-Cyrl and it-Cyrl are not entirely accurate because the names were not just converted to Cyrillic but specifically transformed into the Ukrainian language. In any case, I used these tags as supplementary to the primary name:uk.

Besides, the previous en-Cyrl and it-Cyrl for these objects were also added by me.