I don't want to sound hypocritical, but I prefer good old linux distribution, without flatpaks, without strange immutability stuff. I almost like Fedora, I don't like specifically Workstation flavour, but I was able to build my Linux from Fedora Minimal by adding stuff that I need and it was pretty usable in the end. If they'll spend more time at flatpaks at expense of ordinary packages, I guess it's better to just switch to Arch.