My point here is that some of the suggestions provided, if taken by a non expert user, may do more harm than good. And the reason is that there are many factors that need to be considered for most of the parameters. Something it's hard to capture from a form-based configuration generation tool.
That's why my recommendation of not using form-based configuration generation tools. They can be counter-productive.
Unfortunately the site is unavailable:
https://postgresql.conf/
I never wrote it's a brainless goto conf generator.
>max_connections is a parameter that may cause outages or very bad performance if not properly configured.
That's why you can define the "Number of Connections"