In bridge, is an "uppercut" a special case of a "forcing game?"
I don't think there is a strict definition of the terms, but usually forcing game is reserved for cases where you strive to get opps to lose trump control.

Uppercut is to create trump tricks. If people thought it was like forcing, they might not have chosen to name it :-)

In the third one, east is not obliged to overruff. so not so sure about that. Crossruff comes to mind...