Ebu scale in Cubase 10 pro

Hi,
I currently use a sort of K-System with EBU loudness based on -20LUFS.
Here is what I mean :
integrated = -20 LUFS -+1LU
Short term = 1,5 LU max
Momentary = +3 LU max

But I was wondering about the EBU scale in Cubase 10 Pro. (I mean the Master meter)
Is there accually the most accurate meter in 2020 ?
What does the red lines means ? Is there the maximum peak level ?
Shoud I target the T with RMS of my mix ?
Does it fit with pop music (vs broadcast) ?
Is it like a K-system with EBU meter ?

Thanks for your help.
Charles.

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