For those who need to change the semi-unchangeable "[R] Pick Up Body" keybinding, and because particularly this keybinding is not clear at all or does not use obvious keywords, after dozens of game restarts and some frustration, here is the location of this keybinding to save you the aforementioned:

Cyberpunk 2077\r6\config\inputUserMappings.xml

And find the following part:

<mapping name="Choice2" type="Button" >
<button id="IK_R" overridableUI="choice2"/>
<button id="IK_Pad_Y_TRIANGLE" />
</mapping>

Then, change IK_R to IK_Y or IK_<whateverYouLike>