Alex Oxlade-Chamberlain finally left premier league teams and in the next season he is going to play for Beşiktaş in Turkey I'm not sure why Chamberlain choose Beşiktaş, because this player is still young he is 29 years old player which means he can play for the top teams in Europe for years but choosing Beşiktaş doesn't make sense for him.
Chamberlain joined Liverpool from Arsenal in 2017 for 42m and he played 146 games for this team, but after 2019 he but injured and he couldn't play in many games for his team.

Turkish league is far from the worst, even Icardi was able to restart his career there, so maybe Chamberlain can do it too. Chamberlain is a good player, talented, but it did not work out at Liverpool to get a grip on the main squad, after all, Klopp is a tough coach and if something does not work out, you immediately fall out of the squad. The example of Firmino and Fabinho is even more vivid than Chamberlain.
Chamberlain still has a chance to prove himself, in 29 sometimes everything is just beginning.