Hello !
Thanks for taking some time to reply to this inquiry.
I could not find a Google Drive section on CCleaner.
About winapp2.ini, I'm not using it. At least not that I'm aware of.
Unticking Chrome didn't do the trick. I tried unticking everything from Chrome and Firefox also. I tried Firefox as well because when the Google Drive app starts, it opens my default browser (Firefox) and asks for my Google's login info.
I just tried the Health Check function and it didn't erase the Google Drive login. At least some good news.
My post here has something to do with me being lazy and not wanting to test every single option from the Custom Clean job. : )