I can say 100% no in my expereince from Paddy Power.
Self excluded there yonks ago totally forgot i even played there, set up a new account (i have moved several times since then i guess why it wasnt picked up), played, won. Got my withdrawal immediately follwed by an email saying “your account is suspended due to responsible gambling”.
Spoke to chat they mentioned the old account self exlcuded and that was that. They said as a rule they do not open self excluded accounts regardless of time elapsed.