Bug 513425

SUMMARY
KDE can no longer be installed or updated via discover/flatpak due to dependency on libopenh264 which is exclusively pulled from hostile third-party server with no way to pre-download by any other way or ignore it.

STEPS TO REPRODUCE
1. Try to install/update anything that depends on KDE while being in Russia.
2. Get 403 error from Cisco server (ciscobinary.openh264.org) when sudden dependency on libopenh264 fails.
3. Don't even have a way to feed flatpak "libopenh264-*.so.bz2" manually downloaded via some last remaining usable VPN.

OBSERVED RESULT
Get locked by third-party server from a corpo.

EXPECTED RESULT
Use your own servers, support proxies and local mirrors & caches.

SOFTWARE/OS VERSIONS
Operating System: Gentoo Linux 2.18
KDE Plasma Version: 6.5.3
KDE Frameworks Version: 6.20.0
Qt Version: 6.10.1
Kernel Version: 6.18.1-zen1-fox (64-bit)
Graphics Platform: Wayland

ADDITIONAL INFORMATION
Flatpak known about it for months and views this as intended, tacitly support this and gags protest:  https://github.com/flatpak/flatpak/issues/6232

Also, KDE's own bugs.kde.org/enter_bug.cgi page hangs (not the viewing of the rest though) and doesn't allow to write here without VPN either. Not sure if this is result of Russia-side censorship (due to insanely aggressive DPI-filtering, de facto "Iron Curtain 2.0") or server-side.

Also see https://bugs.kde.org/show_bug.cgi?id=509636
This also may be happening in Ukraine: https://bugs.kde.org/show_bug.cgi?id=508509