@NNR Remote Desktop is not an OS itself its just a way to access a Windows OS remotely. In the UiPath docs, its listed to show that Picture-in-Picture works even when running Assistant over an RDP session. So yes, PiP is supported as long as the underlying OS supports it.
I observed that in normal session, there was security issue with browser where a page appeared and it asked to proceed in unsafe mode , bot handles that in main session while coming to pip mode that page does not appears it direcly naviagted to the page? May i know why it happens