src="https://manifest.googlevideo.com/api/manifest/hls_variant/e....

how? looking at YT code all it returns is 2 combined audio/video formats in ytplayer.config.args.raw_player_response.streamingData.formats and the rest is separate ytplayer.config.args.raw_player_response.streamingData.adaptiveFormats

HLS/DASH is no longer being send, ytplayer.config.args.raw_player_response.streamingData.hlsManifestUrl is missing