Yes: if you do not see 'More > Settings > Audio Cast', then BubbleUPnP does not detect EdXposed (Sandhook or Yahfa) based on a generated stacktrace.
Weird because it seems that it works for others. What version of EdXposed / Sandhook / riru / Magisk are you using ?
Did you enable anything in Magisk, or EdXposed or some xposed modules so it hides itself ?
If it is some settings that makes EdXposed non detectable by the method employed, I will surely have to show the 'Audio Cast' settings
only based on the presence of the BubbleUPNP Xposed module.