First: Gitpod is great, I really enjoy it!
It seems to me that VScode extension packs are not supported yet, isn’t?
At least my extension pack does not reload the contained extensions.
Here is a snapshot of a WS: https://gitpod.io/#snapshot/a340b239-3d5e-48ec-abe5-95301339e48b while having loaded the Epsilon EAG extension pack.
Or, have I done something wrong in my extension pack? It behaves as expected under VScode itself…