More often than not, yeah. On the music production (rather than listening) side the two EQs and spectrum analyzers I use most frequently, FabFilter Pro-Q and Vo

More often than not, yeah. On the music production (rather than listening) side the two EQs and spectrum analyzers I use most frequently, FabFilter Pro-Q and Voxengo SPAN, both use a 4.5dB/octave tilt by default. You can adjust it, but I've never done so.