how to see other tanks debuff stacks without weakauras

yesterday i spontaneously jumped in as a tank for a normal mode raid clear. there was one mechanic where I was supposed to taunt if the other tank had a certain number of stacks of a debuff but had a super hard time.

while i do use plater and some smaller diy class weakauras, I didnt have anything set up for tanking as i am usually dps and dont want to auto-install every single weakaura pack. i like me ui to be lean.

i tried /focus on the other tank. the unitframe had a million buffs but i couldnt see the relevant debuff.

even when I had the debuff, it was super hard for me to find my own stacks tucked away at ~40x40px in some corner of the screen. so i had quite the hard time calling out when to taunt.

considering how frequently these debuff / buff based mechanics are used in wow, how is anyone supposed to play that without weakauras? am i maybe overlooking some ui setting? is there any „native“ way to see this?