What proportion of LEGO Technic parts are specialised in a given kit? I do not have any Technic kits. I'm not even a LEGO user. However I am interested to know the following:
In a typical Technic kit, how many of the parts are standard Technic pieces and how many parts are unique to a given kit at the time of its release?
P.S. I am not sure whether Technic &quot;pieces&quot; are still called &quot;bricks&quot;.

In response to comments
It appears there is no general rule for this, therefore I will ask about a specific kit, namely 42100:

Building the Largest LEGO Technic Excavator! - Liebherr R 9800
https://youtu.be/KPHkrSZ7SSk

The kit is built live (speeded up) on the video so I believe the parts will be visible and identifiable to an expert.
I don't want a precise mathematical description, just an approximate proportion or count that can identified in this kit.
For the 42100 specifically:
https://www.newelementary.com/2019/12/lego-technic-review-42100-liebherr-r.html
Since links are discouraged as them being ephemeral, here's the two most relevant pictures:
New parts:

Existing parts in new color:

In the first picture, the bucket is exclusive to the set, the other parts have been re-used in a couple of smaller sets.
In the second picture, except top left and bottom right, these parts are also very new in other sets, they were introduced in the 2020 Spike Prime educational set (a set with programmable components, similar to Mindstorms)
I would say this number of new parts is fairly typical of all flagship Technic sets.