Does anybody know how to display the geoemtry type of features in the attribute table?
Use field calculator with function
geom_to_wkt which gives you WKT representation (geometry type, coordinates). Then add some string handling for gain only geometry type:
strpos takes position of first space (
' ') character in whole WKT string and print this number (-1 for removing extra space) of characters from the left. The result will be geometry type (
If you need to keep this attribute updated, check Create virtual field. How virtual fields work is described in Editing attribute values in QGIS documentation.