After I updated PureOS, the Software Center suddenly started showing me packages from flatpak.org. There is proprietary software able to be installed with the click of a button. Examples include:
Sublime Text
Sublime Merge
GitKraken
It used to be that you had to explicitly enable flatpak repositories. Why has this default changed and I wasn't there any transparent communication about it.
AFAIK this goes against the FSF endorsement.