[Cocoa] Enable Opus decode support by default
Created attachment 420869 [details] Patch
The Catalina failure is unrelated; this preferences is guarded by an ENABLE flag that's only turned on > BigSur.
<rdar://problem/74537882>
Committed r273165: <https://commits.webkit.org/r273165> All reviewed patches have been landed. Closing bug and clearing flags on attachment 420869 [details].