does this include absolutely everything from your Google account, like all emails with attachments, google photos with album data, youtube videos from your channel, etc? If not, does someone know of a guide out there on how to export all of one's data from Google?
Yes. I can verify that it contains email attachments, Google Photos files (along with metadata in JSON format), and YouTube videos. There is quite a bit of other information included as well, some of which I didn't even know I had created.
That's actually amazing. thanks for your response! I've been slowly working on detaching from google this year due to stories like this, but the thought of manually downloading all my data was rather overwhelming. Glad to know they at least offer this feature
