Metadata source, TMDB TVDB? Which one and can we change

Sonarr version (exact version): Version: whatbox-e4c0e80
Mono version (if Sonarr is not running on Windows):6.12.0.122
OS: Linux
Description of issue:

I track a show called “Frontline”. The current season is coming up as “Season 2022” in Sonarr.

On TVDB the season is listed as S2022EXX. https://thetvdb.com/series/frontline/seasons/official/2022

On TMDB, the season is S41. https://www.themoviedb.org/tv/4384-frontline/season/41

Plex, Kodi and Filebot scrapers are having issues matching no matter which data source I choose, TVDB or TMDB, when the episodes are named S2022EXX.

Which metadata scraper is Sonarr getting its info from? I could not find anything in the settings that would allow me to configure that.

Tmdb has never and is not the metadata source for sonarr. TVDb is used.