I think they still don't store it, What there are doing here is syncing all messages from phone to web when paired. FAQ clearly mentions that web version connec

I think they still don't store it, What there are doing here is syncing all messages from phone to web when paired. FAQ clearly mentions that web version connects with phone to sync data - https://www.whatsapp.com/faq/en/web/28080002 https://www.whatsapp.com/faq/en/web/28080002