This is the error I get. Its been almost a week now
Error: While pulling runtime/org.freedesktop.Platform/x86_64/23.08 from remote flathub: While fetching https://dl.flathub.org/repo/objects/fd/aed570c2fbee988009c54a38b9aca48e0514c44d2bcd36ddb2bcf821856517.filez: [55] Failed sending data to the peer
error: Failed to install org.freedesktop.Platform: While pulling runtime/org.freedesktop.Platform/x86_64/23.08 from remote flathub: While fetching https://dl.flathub.org/repo/objects/fd/aed570c2fbee988009c54a38b9aca48e0514c44d2bcd36ddb2bcf821856517.filez: [55] Failed sending data to the peer
I have updated and nothing. I don’t know if this is a bug but it seems to be on your end.