I don't know if it is included in your Google takeout.
98% of users enable that option. The fact that whatsapp is e2ee is a complete lie.
Use Signal for true e2ee, or if you don't like it, Telegram. Telegram stores everything in the cloud tho. (they haven't disclosed any private messages, and are much more trustworthy than Whatsapp). They just wanted to back up messages without giving it to Google/Apple