Ok thanks. (See how dumb a noobs questions can be
)
Nah, these are good questions, don't sell yourself short.
The consumer grade radios are designed to be simple to operate, and thus have simplified interfaces.
The commercial radios are designed to be programmed by a radio shop or radio tech to fill the needs of the end user, so they appear to be very complicated.
The nice thing is, you can set them up the way YOU want. It takes some time and experience to be good at it, but it's a good thing.
I had a couple of Icom's when I was active on GMRS. I had my own set up to allow a lot of complex functions. The other radios were set up to be more "fool proof". Most of the functions were disabled and just the "need to have" stuff was available to the user, on/off-volume, channel change, push to talk. That is a great way to set up a radio for kids or non-technical types, less trouble they can get into, less mistakes can be made.
As you get more experience, you can open up more of the functions.
But as others said, these radios will have functions you'll never use.