Yes, the hub is identical
Same 5x130 PCD and same 71.5 mm centre bore: wheels from Bentley Bentayga bolt on and centre on Porsche 911 991 Turbo S without rings. You still need to check the offset and tyres, detailed below.
≈: width estimated from the original tyre size.
Wheel by wheel: offset and tyres
Each original wheel from Bentley Bentayga is compared with the one from Porsche 911 991 Turbo S of the same diameter: how much closer the wheel gets to the shock absorber or how far it sticks out of the wheel arch, and whether the tyre keeps the same overall diameter.
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≈8.5Jx20 ET28 · 275/50R20 — Check on the car
Compared with the original ≈7.5Jx20 ET51 on Porsche 911 991 Turbo S: shock absorber side −10.3 mm, wheel arch side +35.7 mm, tyre diameter +15.2 % : fit it with the original tyre size of Porsche 911 991 Turbo S (245/35R20), not that of Bentley Bentayga.
Comparison for guidance only (estimated width). Check in detail
Before fitting the wheels
An identical hub is not enough: offset, width and diameter change the position of the wheel, and larger calipers can touch a smaller wheel. Original wheels often use bolts or nuts with a specific seat: keep the fixings intended for the wheel, with the thread of Porsche 911 991 Turbo S (M14x1.50), tightened to the torque shown on its vehicle page. Finally, check that the size is among the approved fitments for your vehicle. This comparison is for guidance only: have the fitting approved by a professional.
And the other way round: wheels from Porsche 911 991 Turbo S on Bentley Bentayga?