Short answer
Clarifications on your question
I believe you are mixing multiple things.
means to pay for peer review.
Peer review is always "free of charge", in the sense that authors do not pay for their work to be reviewed. Reviewers are (almost never) paid to review, and editors make money by selling access to the papers they publish.
open access, so anyone could read them since I think this is the best way to disseminate information.
On that, you are absolutely right, and it does matter indeed that anybody can access your research without "paywall".
Possibly relevant: what is peer review journal, are they paid by authors , Why do academics write peer reviews?