How do you avoid unnecessary directories after removing a package?

This is ultimately not very productive, but I’ve had free time lately for obvious worldly reasons.

I feel as if I’m missing something obvious, but is there any way to completely remove a package and its directories through pacman without running

<span style="color:#323232;">rm -rf /path/to/directory]
</span>

manually after

<span style="color:#323232;">pacman -Rs package_name
</span>

and hoping you get everything?

Otherwise, my best solution so far has been to run

<span style="color:#323232;">tree 
</span>

with options where I can browse through my directories and check file-by-file.

I’ve unintentionally developed a neurosis where I want my system as clean as possible since I’ve put enough time into it. Which may be dumb, but yeah.