That's a bummer to say the least, I wonder how that came to be?My v30+ is stuck on 7.1 (idk why) luckily still has the 1 incremental volume. It was such a pain in the ass on 7.0 with 5 volume steps especially in high impedance mode...
My v20 on the other hand has Oreo.
And yes I agree, volume steps of 5 did not go well - especially in Spotify in high impedance mode where the it could be the difference between too low or too high of a volume.
Now I gotta get over the habit to turn on my display and adjust the volume slider that way.