Athletically he's fantastic, 6'3 255lbs with an 83in reach, maybe the divisions fastest hands and legitimate power. He has a solid wrestling and Sambo base but I haven't seen it tested or used a ton and his cardio is for sure decent from what I remember in his Fight Night Global days (Mokhnatkin being one of his best wins to date).
He's also very young for a heavyweight, he lost to Overeem at only 26 in his UFC debut and he's now only 30, he has 4-6 years of prime left at Heavyweight. He hasn't really been tested vs the top of the division yet but I have had my eye on him as a potential champion for years. That said, his game still kinds lacks refinement and focus compared to guys like Gane, Blaydes and Aspinall and prior guys like Cormier, Stipe, JDS, Cain etc. We've seen him be the hammer a whole lot but he gets wild and hasn't been tested under pressure much. Still a lot of questions.
I think he smashes Tai, hes just athletically so so superior and his punching is so much faster and crisper but I'll be watching his defense and refinement a lot in the striking to see if he's continued to sharpen and grow as a fighter still. I think he could give N'Gannou real trouble honestly (I still favor NGannou), but I wonder how he'd fair vs Gane or Blaydes, they both would test him in big ways.