Where do we draw the line between LO, roughs and KA?
Because here we have this labeled as layout, despite being a little clean up away from the finished genga

And while this one clearly has roughs somewhat lacking details, it also doesn't have any details regarding the BG work, unlike the previous example, yet is labeled as layout. I'm guessing animation layouts can be separate from BG layouts?

Also, a layout is a guideline, so it makes sense for it to look rough, but why are some of them detailed to an extent with sketches that represent the character models and even have facial expressions like this one here? the same can be said about the previous example
How clean something is has nothing to do with it being labeled as "Genga" or "LO".
Layouts is the original draft of the scene, before it's handed over to enshutsu, sakkan, director for checks.
After which it is (preferably) returned to the animator (in most cases, the animator either refuse to clean up their own messy LO, or they are too busy to do the genga for their own cuts).
What is then done is the genga (2 gen if someone else does it).

Some people draw their layouts really clean, usually if the schedule allows for it.
Other times they dont have time to do nothing but a super rough sketch before handing it off.
Habarudo said:
How clean something is has nothing to do with it being labeled as "Genga" or "LO".
Well, in the first example the "layout" is just the genga before cleanup and some corrections. It just doesn't give me the impression of being a "draft" subject to change; aka: a layout

Habarudo said:
Some people draw their layouts really clean, usually if the schedule allows for it.
Other times they dont have time to do nothing but a super rough sketch before handing it off.
But why would you make them clean or detailed before getting the approval of the enshutsu, sakkan and director? afaik, layouts are drafts subject to change, so going super rough is more logical and efficient
adaroo said:
It just doesn't give me the impression of being a "draft" subject to change; aka: a layout
Unlike a twitter artist who works 60 hours on a master-painting and post "tehee, just a quick sketch :P", whether something is LO or Genga is not subjective. Its a step in a pipeline, and of course official channels like WIT are more likely to share a good, clean-looking LO rather than a mannequin-sketch LO.

But why would you make them clean or detailed before getting the approval of the enshutsu, sakkan and director? afaik, layouts are drafts subject to change, so going super rough is more logical and efficient
There's several reasons for this. Since you always have the Sakuga-Uchiawase (作打ち) before you start working on your cuts, its not like you're just starting randomly at a cut. So in theory (unless the director is a bit of a jerk and decide to change camera-angles after you've started LO), the camera-angles won't change.
Doing clean LO will do several things:
1. Its easier for the sakkan (animation director) to correct your drawings. Even if you're doing "bad" drawings, a clean bad drawing is easier to correct than a messy bad drawing.
2.Even with correction, genga/2gen work will be a lot quicker. Instead of having to solve the messy sketches of the LO animator, it's more of a tracing the LO and applying the sakkan/enshutsu corrections. Which is why it is considered bad and lazy for animators to do really rough LO and then don't do their own genga, but instead push their super rough, unintelligible roughs onto other people (like not cleaning up your own mess).
3. It gives a much clearer impression to the enshutsu/director of what you're trying to achieve.

As you said, LO are often subject to change, timing-wise, acting-wise etc. So it is really a bet on the LO animator's side. In ye old days, LO were super rough, but since the whole 2gen thing started occuring, LO has also needed to become more detailed, as it's not possible to leave a lot of things up to the person doing 2gen (as they are often just random self-professed animators off twitter lacking fundamental skills).
Very good answer^ ty for taking the time
Habarudo said:
So it is really a bet on the LO animator's side.
I feel like this sums it up pretty good lol

But seriously, I appreciate the response, so thank you for your time