Flatpaks are really outrageous in size...I have tried to use flatpaks for the past months but man o man....hundreds of MB for each package, takes forever to update them even on my 1GB internet connection. The idea is great, but this is such a huge downside that I cannot see how it is going to make the flatpaks easier to use than normal packaging.
@futureisfoss@tio Interesting points. Inconveniences like theming are going to improve over time. Transition will happen gradually. I don't see Debian dropping *.deb support. However, I can imagine Debian shipping Flatpak applications.