Hey themodernaesthete,
to try to answer your question about www. and without. It does not really matter anymore. Many sites stop using the www. infront of the url, others like to have the www. there, What i usualy do when i set up a site is point the url without www. to the one with www.
Like:
https://example.com -> https://www.example.com
That way, if people write it without they still get to the site, and it just adds the www. for them. Because of that google wont cache two versions of the site and give you punishment for duplicate content. But you should allways pick 1 URL that is the correct one, and use that for link building.
the WWW. was originaly used to separate the diffrent services on a domain. (atleast thats what ive allways heard). So. https://ftp.example.com was for the ftp service, www. was for the webservice and so on.
– Teknoob
