Short version - outside face of finishes, everything else center lines.
Traditional architectural drawings would show a detail of all of the Wall Types as Plan detail, specifying the framing material, dimension, o.c. spacing, sheathing(s), insulation thermal or acoustic and finish(es) dimensions in thickness and layout.
Coordinated with the structural Wall Types which include connections and further specs for the members and layers. Layout within wall type? Example would be an acoustically insulated stagger-stud nominal 2x4 wall on 2x6 plates for a plumbing wall.
These occur in the most economical subsidized housing complexes or hospitality structures.
Each Wall Section is given an Alpha-numeric key, which is then applied to each on the floor plan. Usually each Wall Type would also have a section detail showing top and bottom conditions, plates, beams, connectors,
unless the wall type is conforming to the minimum standard 1 and 2 family dwelling code requirements and construction is noted as such or is detailed that way in the S sheets…
Floor and framing plans are traditionally laid out showing outside face of finish at exteriors and center lines of walls and columns, on an overall grid if new construction (do yourself a favor).
Openings are laid out with center lines, assuming they also are labeled as Door and Window Types in a Door and Window Schedule which shows their RO dimensions and other information.
Trades starting with foundation and carpentry know how to layout edges of framing from the Wall Type details. The designer for floor plans would have provided and know the information to achieve an overall wall thickness
for the Push/Pull or other operation which creates the finished wall in plan view. If interior space dimensions are a consideration for interior design/casework/trim/furnishes/fixtures then just add those dimensions in your CAD program.
The most common error by the Architectural drafter/designer will be not allowing enough space between a door or window RO and an adjacent corner for the trim specified as casing.
The same error occurs when insufficient space is allowed for switching or fixtures.
Bigger errors occur when the A sheets and the S sheets are not adequately reconciled by the Architect/designer.
God invented GC’s to coordinate the information and trades and the designers to figure it out, short of submittals which are another whole topic.
Backgrounds for the shop drawings and other design consultants?