That’s very interesting that you don’t need to look at group/fx tracks in the project window. Looking at group tracks in the project window is literally what I do almost every minute of mixing music. We must have completely different work flows, or we are doing completely different things.
Here is an in-depth explanation of why I’m constantly looking at group tracks:
Here is a screenshot of my work flow:

The “lead” folder shows all the tracks that make up that particular sound. These tracks are Layered to make up this one “Lead” sound. synth bass 1 and bass 2 are tweaked, then outputted to group track “bass 1 & 2” so that I can apply processing to both tracks together, and so I can adjust volume for the both of them together for easier blending.
“Top” is the high frequencies of the Lead I am making, and “Mid” is the mid frequencies of the lead. Once these are perfected, I want to apply reverb, volume pumping effect (with lfo tool) to BOTH the “top” and “mid” tracks together. So I output “top” and “mid” to the group track named “top & mid”, and now I can apply processing to the both of them combined. Now I want to create reverb for these tracks, but I want to be able to make EQ adjustment to the reverb using plugins without affecting the original dry signal, and I also want to side chain compress the reverb track using the dry track as the trigger. To do this, I create a group track and add the reverb to it, now I can apply processing to just the reverb without effecting the original signal. Now I want to adjust the volume of top & mid & reverb together so I can properly blend it in the song, so I output “top”, “mid”, and “reverb” to a group track called “top & mid & reverb”. Now I can apply processing and volume adjustments to all of those tracks at the same time.
I can’t understand how people are mixing without doing things like this lol, can you explain your work flow?
Notice the group track volume automation lines just sitting there doing nothing but cluttering up the project window lol. I have automation on those group tracks, so I’m forced to look at the automation even after locking the track, even though I may not need to make adjustments ever again to the group track volume, so then I just end up staring at these lines over the next few months while I work on the track. Why have automation tracks hidden for ALL parameters except volume? The volume should be in the sub-automation lanes just like all other automation is. Makes no sense to have automation shown in two different locations.