At the end of this page there is a section called Addressable Analyzers:
https://docs.unity3d.com/Packages/com.unity.localization@1.5/manual/Addressables.html
I tried to find it, but in my case I don’t have the Analyze button:
Has it been moved somewhere else?
Localization 1.5.2
Unity 2023.2.20f1.
Can you check what version of the addressable package it is using? I belive the Analyzers have been removed in 2.X
You may need to force it to use 1.21
https://docs.unity3d.com/Packages/com.unity.addressables@1.21/manual/AnalyzeTool.html
Yes, that’s correct, how do you know everything 
I will switch to 1.21 for now. Will there be an alternative for 2.X in the future?
It was replaced with built-in support in the profiler but unfortunately the analyzer features are not planned for that.