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):
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.

On TMDB, the season is S41.

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.