It can do the arches but wrapping the internal finish at the head isn't done properly, certainly in the UK version. If you tick "Show the closure in 3D", the wall will extend down to include where the lining should be displayed. It would be nice to if it turned the linings properly for detailing but for now it's a "missing feature" as you politely put it.
Apple iMac Intel i9 / macOS Sonoma / AC27UKI (most recent builds.. if they work)