Is there a way to make a similar command but for creating a weekly note? Ideally, I’d like to be able to create the weekly note from a command (also accessible on mobile) with this template, and the title in the format YYYY-MM-DD:
As Obsidiandnancy mentioned, Periodic Notes is the way to go. Same exact functionality as Daily Notes, but expanded. Will do what you need. You can install it, set it up, and deactivate Daily Notes.
I’m not sure what you mean by having a weekly note titled “This week’s Sunday”, since Sunday is just one day…? But yes, you can set up the title of your weekly notes in the space in your screenshot. No need for Templater.
For example, you could change the format to [Week ]ww and it would look like “Week 42” (instead of gggg-[W]ww resulting in “2021-W42”).
I mean for the weekly note to have the date of the first day of the week (Sunday). For example, the week of Oct 17th to 23rd would be 2021-10-17. With templater, I used the following: