[HELP] General Mac OS usage questions :)

[shijan]

There is no system wide uninstaller on mac. So some garbage stays in system when you delete app from applications folder manually.
There is useful app https://freemacsoft.net/appcleaner/ It can delete folders and plist files related to app.
There is also easyfind app that may help to search for real and system/hidden files https://www.macupdate.com/app/mac/11076/easyfind

Sometimes dvelopers include uninstall script if required to delete some special files. As example Vapoursynth installer uninstall.command

#!/bin/bash
#VapourSynth Uninstall Script


clear
while true; do
    read -p "Do you want to uninstall VapourSynth (y/n)? " -n 1 yn
    echo
    case $yn in
        [Yy]* ) break;;
        [Nn]* ) clear; echo "Uninstall canceled, exiting..."; exit;;
        * ) clear ; echo "Please answer yes or no.";;
    esac
done

if test -e /usr/local/bin/ffmsindex; then sudo rm -rf /usr/local/bin/ffmsindex && echo "Link to ffmsindex was removed."; else echo "Link to ffmsindex was already removed."; fi
if test -e /usr/local/bin/vspipe; then sudo rm -rf /usr/local/bin/vspipe && echo "Link vspipe was removed."; else echo "Link vspipe was ralready removed."; fi
if test -e /usr/local/bin/vspip3; then sudo rm -rf /usr/local/bin/vspip3 && echo "Link vspip3 was removed."; else echo "Link vspipe was ralready removed."; fi
if test -e /usr/local/bin/vspython; then sudo rm -rf /usr/local/bin/vspython && echo "Link to vspython was removed."; else echo "Link vspython was ralready removed."; fi
if test -e /usr/local/bin/removevs; then sudo rm -rf /usr/local/bin/removevs && echo "Link to removevs was removed."; else echo "Link vspython was ralready removed."; fi

if test -d /usr/local/include/vapoursynth; then sudo rm -rf /usr/local/include/vapoursynth && echo "Link to VapourSynth includes was removed."; else echo "Link to VapourSynth includes was already removed."; fi

if test -e /usr/local/lib/libvapoursynth-script.dylib; then sudo rm -rf /usr/local/lib/libvapoursynth-script.dylib && echo "Link to VapourSynth Script library was removed."; else echo "Link to VapourSynth Script library was already removed."; fi
if test -e /usr/local/lib/libvapoursynth-script.0.dylib; then sudo rm -rf /usr/local/lib/libvapoursynth-script.0.dylib && echo "Link to VapourSynth Script library was removed."; else echo "Link to VapourSynth Script library was already removed."; fi
if test -e /usr/local/lib/libvapoursynth.dylib; then sudo rm -rf /usr/local/lib/libvapoursynth.dylib && echo "Link to VapourSynth library was removed."; else echo "Link to VapourSynth library was already removed."; fi

if test -d /Library/Frameworks/VapourSynth.framework; then sudo rm -rf /Library/Frameworks/VapourSynth.framework && echo "VapourSynth framework was removed."; else echo "VapourSynth framework was already removed."; fi

if test -d $HOME/Desktop/VapourSynth; then sudo rm -rf $HOME/Desktop/VapourSynth && echo "VapourSynth desktop shortcuts were removed."; else echo "VapourSynth desktop shortcuts were already removed."; fi    

echo "Uninstall complete, exiting..."

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Also for faster navigation it may help to Always Show the User Library Folder https://osxdaily.com/2014/12/16/show-use...-yosemite/