I’m not necessarily like flatpak, but these childish websites with badly written arguments are the things that should be killed..
These are toxic and doesn’t help anyone at all
Also anecdotally I quite like flatpaks as a user. For example having Lutris as a flatpak (it's in flathub beta) is quite nice because it doesn't pollute my system with all those Wine dependencies.
Pro Tip: Use Flatseal to manage Flatpak permissions, e.g. give some apps access to specific folders you use that they don't have by default.
Wow! I never saw that site but it is FULL of misinformation and purposely claiming misleading "facts". I like how there is absolutely no contact info, as this tool knows he's full of crap.