I nearly always want to see multiview - both waveform and spectrogram. Multi-view - Audacity Manual
I’ve discovered that you can make this the default! Edit > Preferences > Tracks > Default view mode
But is there a way to increase the default height of tracks? I still find myself repeatedly dragging them larger.
Obviously this should be a user preference - not relevant for people who usually deal with lots of tracks in one project.
(In fact, fitting the track(s) to the vertical size of the window would be great - the way Ctrl-E fits the selection to the horizontal size available.)