Not at all happy with things right now. You guys abruptly killed CoreOS which was great and left us to fend for ourselves. Fedora CoreOS doesn’t cut it and we don’t want open shift. We will need to move to either bottle-rocket or flatcar. A team member evaluated both and we leaning towards b-rocket since flatcar has a higher risk of dying by running out of funding during COVID (seen this movie before with CoreOS). Amazon’s customer support team is also a lot better.

What does not cut it in Fedora CoreOS ? (Just Curious as a Fedora contributor) Also what could be improved ?

it's too late to improve.

    1. update wasn't possible - that basically means that customers can't count on you
    2. some decisions favored OpenShift instead of being general purpose
    3. you rebuild the whole stack?! from scratch?! 
    4. the documentation is twice as bad as from CoreOS (which was already pretty bad)
    5. the market now has more to offer, way better solutions. Fedora CoreOS is basically just a rebuild CoreOS that brings nothing new to the table and shaken up all customers. if I need to reinstall my nodes anyway I can evaluate k3os, bottlerocket, opensuse microos, rancher, whatever which didn't sleeped while you guys did rebuild your stuff.

these are probably the worst things

Have you guys taken a look at Talos?