the pet bottles from soda-stream are also compatible with philips add4902vvh.

So the glass bottles from SodaStream don't seem to fit the Philipps sparkling water machines. I have tried this model (see link below), this bottle has a completely different thread 🤯
SodaStream 2 x 1 litre glass carafe for DUO

Hello, unfortunately I can't answer that. I only have the glass bottles from Soda Stream. These are not compatible. But they have a different thread to the PET bottles.

I don't know because I haven't tried it.
You can, however, use the Philips PET bottle and decant into a stream soda bottle after carbonating.

Hello, unfortunately I can't say. mfg