Having a gmail address is important to not stick out.

https://www.itstactical.com/intellicom/mindset/gray-man-stra...

If you don't use it for anything interesting, you're sticking out even more. A void can be as revealing.

If you're using it for something interesting, well, you're not sticking out in the "not having gmail" camp, but what's the point.

Yeah, you also need to subscribe to the Grey Service (tm), which simulates correspondence to your specifications. Tell them I didn’t send you and they will also throw in “for free”* a bug out bag disguised as an ordinary plastic shopping bag from a grocery store.

*Shipping and handling extra, depending on your jurisdiction a paper shopping bag may be substituted.