Confused. I have new M1 laptop. I think came with 250 SSD, and already says only 65 GB abailable? Don't get it. 64gb of 245 gb available.

apps 40 gb
music creation 3gb -- don't get that, not making music on laptop
Mac os 15 gb ok
system dadta 33gb ok

documents 2gb - not sure, don't make documents, mostly for email / internet.

I cloud drive 82 GB.. This icloud drive, in cloud, wtf? is this part of why the mac hd on new laptop say filling up? Confused. thanks.