Hello,
Welcome. You will find lots of opinions and advice here. Find out what works for you. As for the rawhide's and bullie sticks, those are def considered a no-no.
As for the chewing, eye's on all the time. And yes, they do learn.
My opinion: I do not use a spray bottle. Here where I live it is so hot that in the summer I use a spray bottle to cool them off on car trips or just even around the house. To use a spray bottle as a detriment/consequence treatment prevents being able to use as a positive reward in another case. In stead, I use a empty water bottle with a few coins or pebbles. It is not meant to scare, it is only meant to be something to break their concentration on what they are doing (chewing), and then the immediate re-direct to something else. And it is also VERY important to follow-up with lots of positive reinforcement for the new action.
Immediate, prompt, consistent, patience, Love, reward, time..... Bulldogs!