Question about MSI Z270 Tomahawk

Hoi,
The motherboard does not play a relevant role when it comes to performance. If you want to overclock, the power delivery is important. (number of phases)
The only important thing is that it has the desired connections.

Good day,

A week ago, me and a colleague wanted to assemble a PC. When we put it together, we couldn't get into the bios (black screen).
So we bought a new mainboard, put it together again and this time it worked.
Now I will also be in this situation in a few weeks and he said that you always have to have a VGA connection on the mainboard and connect to the monitor with VGA. And he said you always have to have a different coloured USB port than the 3.0 (e.g. light blue). I understood this to mean that this port is the only one that is activated and the rest can only be activated once you have been in the bios.

Do I really need to pay attention to these things? And if not, can I use any port (hdmi on the mainboard)?

Could the dear Digitec team maybe order me the Msi Z270 Pc Mate. Because if I'm sure I can use another motherboard, I might choose another one....

Thank you very much!