Mane is an amazing players and he wanted to leave Liverpool to find a new challenge and that was a big mistake. He wasnt good with Salah outside of the field. If that fight with Sane didnt happen in Bayern i think we would be still watching Mane playing all the game for Bayern Munich. Hopefully he finds a good club soon.
It is his own right to leave Liverpool, we can't blame him that he made a mistake.
When he was in Liverpool, he already played a long time with Salah. That's why they can be a good combo wingers. While in Bayern Munich, they may have a different tactics and Mane may not know well other wingers' nature (play style).