How enforceable is GDPR against foreigners anyways? FANGs are motivated to comply because any sufficiently large corporation will inevitably have assets that the EU can freeze, but otherwise it's just a limp-dick attempt at exerting sovereignty well beyond their borders which will get laughed out of any court.

I’m an eu citizen in Europe concerned with data practices of European entities so I don’t care about how it might be limited outside the EU.

GDPR isn’t enforceable against foreign companies. It is enforceable against subsidiaries registered within the EU. Living in Germany means you are doing business with Google GmbH (or likely, the Irish subsidiary). Don’t want to comply with German law? Then Google GmbH must exit the German market.