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They’re at 3nm. Not in full production yet but the process has been developed and meeting yield and performance targets.

Laptops on intel 4 are going to be shipping in a month, they are at this point only one node behind tsmc.

They might pull an AMD and make nm a useless marketing term like amd did to GHZ.

Transistor measurements in nanometers has been more or less meaningless since the introduction of FinFETs over a decade ago, and IIRC it was TSMC that started the let's play funny business with nanometers affair. Today they are marketing terms and the different fabs try to align them somewhat, but have inherent conflicts of interest when it comes to overselling their tech. For example a TSMC N5 transistor is roughly 100x100x100nm in size as per https://youtu.be/gzgyksS5pX8?t=867.

They might as well pull a USB and make nm useless and confusing even to experts. 1.8nm Gen 2×1 SuperNode+, not to be mistaken with 1.8nm Gen 1×2 SuperNode.