Fedora, it fucking slaps and worked right out of the box. I'm using it for work and play on my main rig! I dual boot for some very specific hardware things that are not normal, but other than that it's been seamless! When I booted into Windows 10 again, they auto installed copilot... Glad to be done with this crap.
yeah, its not like you need 2TB of ssd for flatpaks but they can eat up a big chunk of storage it you have say, <250 gb, or more if you actually have a lot of files to store too. And they can sometimes have permissions hiccups/headaches too. I tend to like them better than the alternative (snap or appimage) but across several distros I've noticed that native rpm/deb/etc packages usually have more care put into the fit and finish/quality of life aspects by the maintainer