In my opinion, the transfer of Mane to Bayern Munich left the impression of being unlucky for all three parties, Mane as the first party, Liverpool as the second party and Bayern Munich as the third party.
Liverpool appearance was not as expected after Mane departure, even though they had brought in Nunez at a high price, Liverpool still had difficulty finding their best game which prevented them from reaching the Champions League.
Mane performance dropped dramatically after wearing the Bayern Munich jersey, he had difficulty developing his potential like when he was still defending Liverpool. The decline in Mane's performance has had a huge impact on the continuation of his career, he will be threatened with losing his place in the main squad if he doesn't immediately give his best performance for Bayern Munich.
Actually, in this case, maybe even if I like Liverpool, I will still criticize their officials a little.
Mane actually could have extended the contract at that time but indeed in this case the management from Liverpool were always hampered by the desired salary because they really wanted to make a new contract with the same salary so Mane did not want a new contract and in the end inevitably he was released.
As for Mane's performance, I don't think there's anything wrong with him, it's just that for the start he was at Bayern, his position was a little different and it was annoying, but when he was in the position he always did, his performance was pretty good for the first season, it's just that he was injured readjust to performance.
Overall for the first season and 12 goals for him with a few adaptations and a long injury it's actually quite good it's just that the demands from Bayern may be higher but of course even if this is true but I think they also have to do their portion well and not too much demands only from Mane's performance because from a schematic or coach point of view it also has to be considered.