It all depends on the situation.

Playing live, I think 8 tracks are quite a lot for a user to keep “track” on what´s going on and where to go next. In that sense I guess many are using less tracks for the tweak duties, and perhaps the remaining tracks for some automatic stuff running in the background.

Playing in studio, I think many users may see the OT as an very versatile tool that they can rely on “solving” things. Solving in the sense of: getting an soundidea in the head, and just turning to the OT to conjure that with whatever basic sound to start from.

8 tracks may sound limiting but an example:

Track 1-7: each holding an separate part of a “drumkit” as per default sample.
Track 8: flex recorder, recording the main outputs.

This “start” setup would give you the possibility to use track 1-7 as your mini MachineDrum, as you hit Record on the sequencer it will fetch all hits you where you want(/hit) them.

Now you got an “drumloop” going, and you´re able to sculpt the sound of each track(/drum) by using the effects. You may want them a little bit more “human”, so you could make use of the LFO to varying the volume just slightly.
When done, you may then use track 8 to record the whole kit you´ve just created/played in track 1-7. When captured, remove any recorder trigs. From now on you´re able to slice it up if you want some varitions (that you don´t want to play out yourself). Just set an LFO to varying the (slice)startpoint. No matter if you do slice it or not, you´re able to set track 8 to play (looping). Now you´ve got this whole kit playing in the background.

And you´re then able to use track 1-7 for whatever other duties you may see fit (bass, synth parts), either by utilizing readymade samples or by sample yourself via the inputs with your external gear (i e switch the tracks to using flex recorders).

As you can see, there are certain things that can be seen as similar to an portable multitrack recorder, in which you normally are able to record from separate input channels. Whenever you need more tracks, you´ll need to bounce down to an stereo track to be able to set some channels aviable for recording more stuff.
The big difference here is that the OT got the possibility to use samples, which you trigger AND then are able to record. That would be close to having (in this example) an external small drummachine/module (always) connected to your multitrack recorder.

Take it the other way around, say that you´ve got an great sounding drumsample on your multitrack (i e 4 bars). But you´d really like to have another drumpattern/rhythm of it.
With the OT you´re able to dive into that very sample and slice it up so you´ll get each drum hit separated. Play them, and then utilize the abovementioned method to bounce it down again. That would be similar to having an sampler (always) connected to your multitrack recorder, in which you can sample, sculpt and then play back each hit and record that in your multitrack recorder again.

Funny thing is that even here, we´re just barely scratching the surface. You´ve got the fader that allows you to morph between parameter settings, which can be set to alter each and every track in many ways (less or more). You could i e tie it to the rate parameters and have your abovementioned looping kit (track 1-7) acting like it comes from an vinyl (which you can slow down to the point where it doesn´t revolve at all, rate = 0).
You could record that instead, when you´re about to capturing all this in track 8 (as described above). Or if you choose to it afterwards with the track 8 recording (which still can play variations of the slices you made first).

I´m not 100% sure, and others may chime in or correct me. But I think that all of this may even be possible to perform in realtime without any sound dropout anywhere. Thanks to the fact that you´ve got the Main/Cue outputs which you can choose to listen too when doing your slicing/editing before letting it all out for anyone to hear…

IMHO, OT gives you 8 tracks of freedom that you´re able to use in many different ways.