The current version of fedora does not support the reproduction of Live Videos on youtube:

{
	"ns": "yt",
	"el": "detailpage",
	"cpn": "2moYhqxYZ3AYA356",
	"docid": "9DXGrOU5wKQ",
	"ver": 2,
	"cmt": "0",
	"ei": "4QFeYcrSGoGNj-8PkLe3KA",
	"fs": "0",
	"rt": "19.667",
	"of": "zxyvQMwdAJlIgsU-gSyxVA",
	"euri": "",
	"lact": 1,
	"live": "dvr",
	"cl": "399829848",
	"mos": 0,
	"state": "80",
	"vm": "CAEQARgEOjJBS1JhaHdCOFBXWGh4Q3hLcXg3M0paNU9QSUJMVU5ub0hsMUJKZDRFNGMxN1FvbldZZ2JLQVBta0tESXdSUUY2aEQxUmdHc1hLaXpTQUF4eU9fX3h0WThIWGIzWnQwajBWVUNVR2pUUkduaWp0SDJOY0ZvSGNncnVBcDFtWURZ",
	"volume": 100,
	"cbr": "Opera",
	"cbrver": "80.0.4170.16",
	"c": "WEB",
	"cver": "2.20211006.00.00",
	"cplayer": "UNIPLAYER",
	"cos": "X11",
	"cplatform": "DESKTOP",
	"delay": 5,
	"hl": "en_US",
	"cr": "*",
	"fexp": "23748147,23843878,23983296,23986028,24001373,24002022,24002025,24004644,24007246,24064555,24080738,24082662,24094715,24101841,24106092,24106565,24106628",
	"muted": "0",
	"vct": "0.000",
	"vd": "NaN",
	"vpl": "",
	"vbu": "",
	"vpa": "1",
	"vsk": "0",
	"ven": "0",
	"vpr": "1",
	"vrs": "0",
	"vns": "0",
	"vec": "null",
	"vemsg": "",
	"vvol": "1",
	"vdom": "1",
	"vsrc": "0",
	"vw": "766",
	"vh": "431",
	"debug_error": "{\"errorCode\":\"html5.unsupportedlive\",\"errorMessage\":\"This video format is not supported.\",\"mD\":\"HTML5_NO_AVAILABLE_FORMATS_FALLBACK\",\"oi\":\"\",\"CF\":\"buildRej.1;a.1;d.1;drm.0;f18.0;c18.0;f133.1;f140.1;f242.1;cAVC.0;cAAC.0;cVP9.1;a6s.0\"}",
	"prerolls": "heartbeat,ad",
	"ismb": 4800000,
	"latency_class": "NORMAL",
	"segduration": 5,
	"lat": 0,
	"relative_loudness": "NaN",
	"user_qual": 0,
	"release_version": "youtube.player.web_20210928_1_RC1",
	"debug_videoId": "9DXGrOU5wKQ",
	"0sz": "false",
	"op": "",
	"yof": "true",
	"dis": "",
	"gpu": "ANGLE_(X.Org,_AMD_R600,_OpenGL_2.1_Mesa_20.3.5)",
	"debug_playbackQuality": "unknown",
	"debug_date": "Wed Oct 06 2021 *"

I already tried configuring opera with the chromium-ffmpeg library (libffmpeg.so) but this library does not provide av_stream_get_first_dts symbol required by Opera version 80.0.4170.16.

Any idea about how to solve this?