Hello LMENDOL
Yes, there are many gondola and cable car operators that accept the (Swiss) Half Fare Card, this has not changed. To know whether it is accepted for a particular ride, simply check the operator website of that gondola or cable car. There, they do mention whether the HFC is accepted.
Or, use the SBB Mobile app, activate the Half Fare Card setting, and enter the base station (e.g. Grindelwald, Firstbahn) and the mountain station (First (Grindelwald) of a desired gondola ride. The SBB Mobile app will let you know the cost considering your HFC, where applicable.
Kind regards,
Roland

