Please find the information below:
Installed SDL Tridion 9.1 on a Single Machine following docs.sdl.com guide
Installed DXA 2.2 DOTNET
DXA 400 Example site imported and published.
Installed the Add- On Service as per docs.sdl.com installation guide
Uploaded the package "udp-content-dxa-extension-assembly-11.1.0-1061-core" in Add-on service(http://localhost:83/addon/)
udp-content-dxa-model-traformation-extension and udp-content-dxa-graphQL-schema-Extension stuck with the status "Pending Activation"