Unfortunately it was a very difficult room sound-wise, all marble and stone with a massive ceiling, so the noise was echoing around everywhere. The sound engineer asked us to keep the volume on stage as low as possible so there wasn't much coming from the amp.
I was off to the side when George was playing so I didn't really get a chance to hear him. The videos I've seen have the bass pretty low in the mix, so it's not easy to make out much of his playing unfortunately.
What I will say is that he's not been playing music professionally for over 40 years, the stage sound was not ideal, and he'd only ran through the two songs with Carlos and our band once earlier in the day. I think with all that in mind he did a great job, particularly with Secret Life of Arabia which he's presumably not played since it was originally recorded for Heroes. Bowie never played it live.
https://youtu.be/zRjvJgQCWAg?si=kP89G2CJnZjuB4G7