Just noting that this issue is still present a month later, across not only Chrome flatpak but several other apps. Posting to hopefully create more visibility around this issue, as (I guess?) I’m in a super minority of users who need CJK fonts in flatpaks/Silverblue.
I’ve seen workarounds and such scattered on GitHub and Reddit, but it appears to be a fundamental issue related to Fedora changing something with CJK fonts from 37 to 38. It would be great if this issue was patched in rather than me having to “hack” fonts into apps based on their various (convoluted or even nonexistent) flatpak font config directories.
My system doesn’t use dnf, it’s rpm-ostree (see topic tag, we’re on Silverblue).
Unless you mean for me to do this in a toolbox?
Edit: Quick update, someone on GitHub was nice enough to explain how to do what I think the above poster is recommending, only on Silverblue. I personally don’t want to alter my “immutable” system at all unless I absolutely have to (e.g., drivers), and would prefer if this just got patched, but here is a solution if anyone would like to give it a shot: