I am the only experienced Full Stack developer in the team and I felt that the management got a bit excited when they found out. For the first week I was asked to represent my team to the UI review committee to get the UI approval, I had little or no background of the feature but it was kind of rushed out.
Second week, I was told to write the design document of a feature which I was not aware of. I started digging deeper into it, but after 3-4 days I was told there is some other team who is working on something similar so I should stop working on it.
Third week, I was told to again start working on it but then was told to put it on hold. Within the same week I was also told to write the Engineering document for the FE development for the team, this was a bit surprising for me seeing there is almost everything custom at SF, I felt I needed some time to understand the ecosystem, it is the work in progress.
Here's some great resources around tech leadership and understanding staff engineer expectations well: