I wish there was a way to auto-hide Cookie consent and Subscribe banner prompt automatically on each and every site
It's not perfect, but you might be looking for the "I still don't care about Cookies"[1] or Consent-O-Matic[2] extensions.
[1]. https://github.com/OhMyGuus/I-Still-Dont-Care-About-Cookies [2]. https://github.com/cavi-au/Consent-O-Matic