Is there a way to make it so that whenever I open a doc, it opens to the same page every time, not where I last left off?
Not that I know of, but you could put links to your desired page on every other page so that it’s easy to get back there
+1 to what Connor said
Also wanted to add that you might consider just creating bookmarks in your browser. When creating these, if you copy the URL of a certain page, that bookmark should always lead you back to said page.
Or make a quick link with chrome on your desktop - it wil always open on the page you were on when making the quicklink.
See this posting: Emulate Coda.io as a Desktop app