Although I’m a relative newcomer to Obsidian, I like what I see, especially the templating and data access functionality - both that provided natively and through the Templater and Dataview plugins. One missing piece is the ability to dynamically update the YAML-formatted metadata in the frontmatter of Obsidian’s Markdown documents. Several threads on both the official support forums and on r/ObsidianMD have addressed this; and there seems to be no real solution.
There are a couple features of the Dataview plugin for Obsidian that aren’t documented and are potentially useful. For the start of the week, use date(sow) and for the end of the week date(eow). Since there’s no documentation as of yet, I’ll venture a guess that they are locale-dependendent. For me (in Canada), sow is Monday. Since I do my weekly notes on Saturday, I have to subtract a couple days to point to them.