As above, when a game of Mixtape ends (most detectable with Gun Run and TDM) there's a "Final Kill" killcam which now just freezes the game for several seconds until the winning team is displayed.
Ideas
This phenomenon occurs on PS5. Also, if abnormal packet loss occurs, an error may occur due to a bug in the kill camera.
If this bug occurs every time you update, it would be better not to permanently set up the kill camera in Respawn.