I was checking the installation instructions for installing UiPath Extension for Citrix on this link : Extension for Citrix (uipath.com).
From this link , it seems that UiPath studio has to be installed first as it asks to go to Studio or the UiPath installation folder. But in our case , we need to install only the Citrix extension as the client is not allowing us to install UiPath studio there. We would be installing the studio on a different VM from where we will access this client VM.
A screenshot is attached showing that UiPath Studio is required on the VM where you want to install the Citrix extension.