Check the tier system again. It goes like this: You have the most money? Pick what you want.
It's been widely reported that Apple and Intel have squeezed out AMD from initial access to TSMC's 3nm. Stay up to date.
Others tried to tell you that although intel gets access to 3nm before AMD, it will 1) be the first iteration of 3nm and 2) in short supply (left from Apple allocation). The 1st iteration of a new node works well for Apple because they use it for mobile, which is smaller and less "pretentious" to say, but for CPUs is different story.
AMD will get 3nm when it will be refined and in bigger quantity available, so basically Apple as usual and even more now intel will be guinea pigs for the new nodes.
AMD has everything to win from this, intel wins just some PR for unknowledgeable people and most likely the products made on 3nm will be for server, not consumers, because of those low yields, low supply and high defect ratio the 1st iteration and all those other issues that come with it...
And on of the most important things that some people ignore is that TSMC and AMD are now partners for many years and they do share secrets to each other, but intel and especially with the IDM 2.0 plan will be a direct competitor to TSMC now.... so even if they give intel access to 3nm, they will have a much more limited and non-important relation than TSMC has with AMD.