great, I would go straight into the grapheneos to avoiding Google entirely

chose different location than Costa -without CCTV so no footage stored, but you cannot look suspicious wherever you are

do not store contacts on google servers..

gmail to be avoided imho

if you need to use a sim use e-sim virtual from the providers online (purchased in advance) and pay with digital currency.. some are data only, 20GB for 30$ pcm.