Best way to reduce objects clutter in Inspector

Unity Engine
,
1

After some time into Unity XR project, I started noticing how unnecessarily cluttered Inspector became in some cases. For example, I have Script A and Script B. Script A changes cubes colors to red and script B changes cubes sizes. The way I had it before, both scripts had serialized GameObject List to which I dragged the same cube objects. That’s a simplistic example but clearly represents the issue.
Script A Component
Cubes List
Cube 1
Cube 2
Cube 3
Script B Component
Cubes List
Cube 1
Cube 2
Cube 3

I have been thinking of ways to reduce that clatter. So far, the solution that seems to work fine is to create a placeholder script and then just find its instance with FindObjectOfType. So whatever I had above became
Script ObjectPlaceholder
Cubes List
Cube 1
Cube 2
Cube 3

I am just wondering about other common practices or better ways to solve that problem.

2

Why aren’t they just one script?

3

That would definitely solve the issue if it was just one script. I have 2 modes in game, training and testing, which I initially split into 2 scripts due to logic difference or so I thought. There is a lot of overlapping logic at the moment that I could move out to single script, but due to time constraints I cannot go back and organize it better at the moment (still learning the tropes with it being my first actual project in Unity)