Hi @plawansai and welcome to the community!
As to my knowledge, there isn’t a dedicated Desktop workshop at the moment, but there are a few related workshops and resources that cover Quick Desktop capabilities, feel free to give them a look to see if this is what you’re looking for. This is a community-listed workshop that covers workflow automation, building Flows, and creating custom AI agents: Amazon Quick Workshop. I would also recommend checking the monthly/weekly events thread for upcoming immersion days. Quick Automate and Quick Sight immersion days run regularly and often touch on Desktop features.
In case those resources aren’t what you’re looking for, here is the AWS documentation on the Quick Desktop: Amazon Quick on desktop - Amazon Quick . This should also be helpful in case you have any specific questions.
Hope this helps!