While testing how YouTube handles different transcoding tiers, I noticed inconsistent output for high-bitrate streams unless the network was stable, so I tried a proxy server USA
https://proxyline.net/en/proksi-dlja-ssha/ . OBS output stabilized immediately. Streams were delivered cleanly to 1080p60 and 4K tiers without auto-downgrades. Scene switching and media sources didn’t cause stutter. Multi-hour streams stayed stable across resolutions. It allowed me to understand exactly how encoding settings interact with platform transcoding.