> https://mediabiasfactcheck.com/al-jazeera/

Editorial bias towards Qatar, yes. But generally considered to be factual (2 uncorrected factual errors in the last 9 years).

Al Jazeera English isn't half bad, actually. There have been a lot of estimations about it's reliability, and it usually scores high. It has a "left" bias by an American perspective, but the facts are usually facts