For anyone that has preferences for x265 content will know the pains of making this work in Sonarr. For other people, release groups not specifying quality (webrip, etc.), sonarr by default marks them as HDTV. If you rely on scoring to prefer x265, anything released correctly named as web with codec x254 will be upgraded over any x265 files.
I need a sanity check on my configuration that I believe has resolved this.
I have simply bundled all WEBDL, WEBRip and HDTV together:
This appears to have made them all equal, and it now does not upgrade over HDTV despite the codec. My next thought is it create scoring to reintroduce quality by reducing the score of anything specifically named HDTV.