How to capture points using lat/long coordinates

User needs to first create a non-spatial table containing the coordinates. Then add the coordinates within the table. You can then create a virtual layer mapping lat/long.

Here is an example project:
https://app.merginmaps.com/projects/lutraconsulting/capturing_points_by_coordinates

To add a new point, user needs to go to the Layers > Coordinates and then press Add feature. For the new feature, you can then add your precise lat long values. Once saved, the points will appear as a red dot on the map. Note that you cannot edit the values for Points layer, this is a virtual layer.

Start with the linked example project and verify the Layers > Coordinates workflow described in the issue. Document how to enter precise latitude and longitude values and explain that the Points layer is a virtual layer whose values cannot be edited. Done means a newcomer can follow the documented steps to create and view a point.