I was wondering why Adblock Plus and uBlock Origin were installed together... I was under the impression that Adblock and Adblock Plus were deprecated by uBlock OriginPureBrowser shouldn't include AdBlock Plus.
Privacy Badger is sponsored and created by the EFF and in my opinion should be installed by default.
LibreJS should be used to help the user automatically block/unblock non-free Javascript at will.
:)(it shouldn't include other addons either, but instead PureOS default install should - see T270 T271 T272)