I’m currently using excellent NotePlan application on mobile for my daily notes (https://noteplan.co/).
NotePlan has a default calendar view for daily notes, where you can select the day and display the associated markdown file easily. This would be a great addition to Obsidians views. Also the logic that collects the todo’s and events from the daily notes and shows them in the calendar view is a feature I’d be very interested in having with Obsidian, especially after the mobile application materializes. This way I could just collect my daily notes in a note file and synchronize it with the rest of my obsidian vault notes automatically without copying stuff manually like i now do. Then if it’d even have reminder support, I at least could use this system as my main calendar