WordPress permalink what is involved to set it up

I have my wordpress hosted with the permalink as a default.https://example.com/?p=N

I would like to change it so I installed wordpress locally and activated rewrite_mode in Apache on my WAMP Server.

I would like to use the customized permalink based on pages not posts since most of the instructions in the permalink is based on posts not pages.

I don’t have posts as I only have pages and subpages therefore I would like to set up my link based on this. Can I integrate subdomains and directory? How can I achieve this?

I also read that I have to change something in this file .htaccess, I am unsure where to find it and what to change in it.

Thank you for your feedback.