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.

Practically all of audio land is logarithmic.

The orders of magnitude in power/loudness is pretty astonishing.

When introducing decibels to new audio engineers, we generally introduce it as a 3db increase is a doubling in power, a 10db increase is a 10x increase in power.

It gets silly when you start talking sound pressure level, because how people perceive a 10x increase in the output power, is about a doubling of the perceived loudness.