i have been running silverblue for about half a year now, and rely heavily on them.
i can remember 3 distinct issues:
vs code commandlines start in the sandbox, which needs a workarround (rather understandable)
either the fedora, or the flathub build of firefox didnt come with some video codec, OpenH264 i think. switching to the other build fixed it (imo more a licensing issue with the codec than a flatpak problem)
on rare occasions (about once every 3 month)
steam behaves weirdly, and refuses to start until i update the flatpak.
we also had schupfnudeln with sauerkraut, but with chopped bacon added.
asside from that, i also know mashed potatos with kassler (cured pork),
Leberwurst(loose sausage that is usualy used as a spread)
and blutwurst(blood sausage)
boiled in sauerkraut, as a Christmas classic.
(both sausages were loose and squeezed out of the casing)
i also remember grandpa snacking on cold raw plain sauerkraut for dinner.
but he was the only person i know that ate it like that.
but i dont remember any other dishes ive eaten with sauerkraut in it.