How to enable/disable “Show as run destination” for all simulators https://stackoverflow.com/questions/50796954/how-to-enable-disable-show-as-run-destination-for-all-simulators

Xcode-hide-all-simulators.sh

simulatorsIdentifiers=$(instruments -s devices |
  grep -o "iPhone .* (.*) \[.*\]" | #only iPhone
  grep -o "\[.*\]" | #only UUID
  sed "s/^\[\(.*\)\]$/\1/" | #remove square brackets
  sed 's/^/"/;$!s/$/"/;$s/$/"/' | #add quotes
  sed '$!s/$/,/' #add comma to separate each element
)

arrayOfSimulatorsIdentifiers=($(echo "$simulatorsIdentifiers" | tr ',' '\n'))

# Add simulators to DVTIgnoredDevices
echo "${#arrayOfSimulatorsIdentifiers[@]}"
for index in "${!arrayOfSimulatorsIdentifiers[@]}"
do
    echo "$index Adding: ${arrayOfSimulatorsIdentifiers[index]}"
done

defaults write com.apple.dt.Xcode DVTIgnoredDevices -array ${arrayOfSimulatorsIdentifiers[@]}

for xcode 13 this works for me

simulatorsIdentifiers=$(xcrun xctrace list devices |
  grep -e "iPhone" -e "iPad" |  #iPhone and iPad
  grep -oE "[0-9a-fA-F]{8}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{4}\-[0-9a-fA-F]{12}" | #only UUID
  sed 's/^/"/;$!s/$/"/;$s/$/"/' | #add quotes
  sed '$!s/$/,/' #add comma to separate each element
)