Try workaround

app/config.py

@@ -31,6 +31,7 @@ class Config(BaseSettings):
     ymusic: OauthCreds
 
     proxy: str | None
+    socks_proxy: str | None
     jwt_secret: str
 
 

app/youtube_api.py

@@ -27,7 +27,7 @@ def _download(yt_id: str, directory: str):
         'outtmpl': os.path.join(directory, 'dl.%(ext)s'),
     }
     if config.proxy:
-        params['proxy'] = config.proxy
+        params['proxy'] = config.socks_proxy
     with YoutubeDL(params) as ydl:
         return ydl.extract_info(yt_id)