Answer:
Yes, it is.
When modeling a spherically curved glass pane, make sure that the surface consists of four boundary lines only.
In RF‑GLASS, it is necessary to deactivate the "Activate layered mesh for solids" option for double-curved or spherical glass panes.
More information about curved surfaces in RF‑GLASS can be found in another FAQ (see the link below).
Go to Explanatory Video