PayPal is updating their ToS to let themselves give your data to merchants starting in November and they're certainly banking on people not knowing to opt out, SO to opt out before they start:

go to Settings > Data & Privacy > Manage shared info > Personalized shopping, and toggle that shit off

btw for everyone joining bsky today but worried about trying to find their friends from back on twitter: ✨ sky follower bridge ✨ is an extension on chrome and firefox that lets you sort through your following on twitter to see if any of them have associated bsky accounts