you caught a Dell documentation error.  they must be copying the 5060 manual to 3060 and forgot to edit out that detail.

The most notable difference between the 3060 line and the 5060/7060 is the chipset. The 3060 uses the slightly less capable Intel H370 chipset while the 5060 and 7060 use the Intel Q370 chipset.  the only meaningful difference is that the 3060 with H370 chipset does NOT support Intel vPro management

3060 micro and 5060 micro coolers are the same.  both use 300 series chipset.  cpu support list is the same.

after reading this thread I decided on the i5-8400t