Lot of good info there.
Muted clothing is virtually as good, in most cases, and less likely to provoke laughter.
I find when in woodland, movement is king but cover "human" identifiers like hands and face.
I will wear camo in the wood, simply as the greys are so skittish and once spotted, that is game over for hours, or the full day, if hunting in the afternoon.
But animals have been around 'camo' long enough now, that if they do make you, they can alarm more than just a normal appearance human.
Don't wear camo unless you mean it.
When I was ratting around loose stock (especially goats) I ended up using a ratty old brown & grey coat, they got used to it, and I had endless problems if I didn't go like that, so at a new place chose wisely. Rats are normally to be found around buildings and kit, so I don't think camo has much benefit, just non reflective, non shinny, muted tones and stay back.
Squirrels, I assume due to what predates them, are very aware of movement, so I can be full camo, but in line of sight, move even slightly too fast (differently to the background), and they are off.
I learnt that from early days, and just freeze until the line of sight is broken, or the extremely rare time you can get the shot off, in the "shocked" pause, or first stop while leaving.
I've some waterproof DPM I keep for really wet conditions, but generally it is Jack Pyke, or the Deerhunter stuff I bought from sales.