Yeah, use an email relay service like Firefox Relay, SimpleLogin, the one from Proton if you have an account with them (that's SimpleLogin behind)…
You can create email aliases, that will relay the email to your main address. Create a new alias for each website so they can't use your email address to correlate your identity and you can close it anytime, you can even configure an alias to only allow a set amount of messages and auto-close afterward.
Addy.io gives you email aliases as not to expose your actual email address. Everything gets funnelled into a single inbox of your choosing still. And the great thing is that if you use a unique email alias for all services, you know instantly who leaked your email address if you start getting spam. :D
Consent-o-matic is about consent forms, so it'll fill the consent forms giving, by default, the least consent possible. If it doesn't know how to handle a form it'll just not auto-fill it so you'll have to do it yourself. It's not just about cookies, they are just one common way to acquire the data. IDCAC will just hide the form, because it was made to hide cookie notices and later extended to do the same for consent forms. According to the law not filling the form, not giving explicit consent, is like refusing it.
Anyway, none of these extension touch cookies directly, they are only about notice and consent forms. It's up to the website to act accordingly. And none of this will do anything about necessary cookies, or more precisely, about any data deemed necessary, however it's collected.
It looks like bypass paywalls clean was actually taken down recently. Apparently mozzila recieved a copyright claim and it was taken down as a normal part of that process :/