So, there were 2 things I noticed throughout the show. He kept going to the stage in front of the drums to blow his nose and kept spitting - not sure if he sick or something. Although his voice was in the top 3-5 of concerts I’ve seen (20+), he did seem like it was hard for him to catch his breath. The average fan probably wouldn’t notice, but those of us who pay attention, you could tell he held back. Example, first show I’ve ever seen without the “Do you know where the fuck you are” intro to Jungle.
The other thing was the carpet was not down on the front of the stage. They crew put it down around better and Axl looked like he was about to lose his shit. I could see him yelling at someone near his dressing room. He made a joke about it a few songs later.