how to get observer working, I want to catch all events in one place, tried examples from help page but no luck

I bind class AllEventsObserver in module, catched onExport and on search via annotations but no luck so far

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I get it fixed later stage

How did you fix it?

I am recalling that we have talked about this on Skype in early 2020, but I will find and let you know, below is the link for reference

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