I installed nRF Connect SDK v2.0.0 and notice that the open Segger Embeded Studio button is not shown.
Also (may be related) opening Segger Embeded Studio from the SDK v1.8.0 works fine, but "open nRF connect sdk project" resulted in a error message. something about not able to load JSON script.
Finally I removed the V2.0.0.
What could be wrong here?