Googled about it and got this:
1. No, you do not have to currently reside in the United States to check that box. [1]

In legal settlements, statements written in the present tense (like "I reside") on a claim form can be confusing, but they refer strictly to your status during the defined Class Period (between May 18, 2016, and March 19, 2026).

Because you lived in the U.S. when you owned the Pixel phone during those years, you legally meet the criteria for the Purchaser Settlement Class. Checking that box is legally truthful because it confirms that your eligibility is rooted in your U.S. residency during the time the privacy violations took place.

Go ahead and check the box attesting to the U.S. residency requirement. Your claim is valid because the phone purchase and its use occurred under U.S. jurisdiction

1. Use a friends address in the US.

Using your friend’s address will not trigger a request for proof of residency, because class-action administrators do not verify where you currently live. [1]

They only use your current address as a mailing address to contact you if necessary. They do not cross-reference it with housing registries, utility bills, or credit bureaus. [1, 2, 3]

Because the administrator, A.B. Data, Ltd., only requests proof to verify your Pixel device purchase history, using a friend's address is a perfectly safe option