Does someone know what reference size to take for those SMC nanometers? It may sound irrational to ask this kind of question, but marketing killed the meaning

Does someone know what reference size to take for those SMC nanometers? It may sound irrational to ask this kind of question, but marketing killed the meaning of "nm" a long time ago. As reference, through electron microscope the sizes of Intel 14nm seems equivalent to AMD.TSMC 7nm [1] [1] https://www.techpowerup.com/272489/intel-14-nm-node-compared-to-tsmcs-7-nm-node-using-scanning-electron-microscope https://www.techpowerup.com/272489/intel-14-nm-node-compared...