I've seen other suggestions around queries and search. What I would love to see is a way to search collections of notes together. For instance let's say I want to see instance where an entity (such and such Meeting) intersects with the tags
#journal or #therapy) there is no easy to create this query or search. Roam has pretty advanced querying but they are not user friendly. Height.app has a great example of this with their Smart List UI. It allows you to create named searches and build AND/OR querying that are easy to build and view. I would love to see something like this in Reflect, both a way to do quick one-off search for aggregate entities/tags and a way to create "Views" that are filtered by given criteria.