So in caretaker and other raid encounters, the buff that is important is blended in with buffs that are not important. I would say put mechanic related buffs on the other side of the screen. I woukd also say that you can adjust audio settings to isolate mechanic sound cues…have its own slider I am just thinking about this but maybe it already exists- can you mute certain players in game chat…eg you might not need to hear everyones call outs and they other guys are making it hard to hear your partner…but then have a swtting where you can quick swap back to everyone once damage starts for example