I’m going to be honest with you, apart from Google Rewards amounting to the price of one icon pack or simple paid app from time to time… all these voucher/points websites are not worth your time.
A decade ago there were some legit ones, though arguably the time invested never really was worth the prizes. But nowadays? Every single one is either a complete scam, or they’re paying you soo little you’d be better going Upwork to translate some documents, write some marketing material or help somebody edit a picture.