A bit of statistics from the last build from version 0.17.12575...
From 1636 total detected issues, 832 have been fixed, 93 dismissed (false positives or intentional). From remaining 711 issues, 588 are in 3rd party libraries (and ignored in the reports). That brings us to 123 issues, from which 65 are from the new python analysis. Finally from the remaining 58 issues, 29 are in the "libarea", which brings us down to only 29 issues in the rest of the code
Breakdown of the 123 remaining issues by components (workbenches)
C++ (58)
Mod/Sketcher 2
Mod/Points 7
Mod/Path/libarea 29
Mod/Path 11
Mod/PartDesign 2
Mod/Part 1
Mod/Mesh 1
src/Gui 2
src/App 3
Python (65)
Mod/Arch 9
Mod/Draft 14
Mod/Fem 8
Mod/Import 12
Mod/Material 1
Mod/OpenSCAD 7
Mod/PartDesign 5
Mod/Path 3
Mod/Sandbox 1
Mod/Ship 1
Mod/Spreadsheet 1
Tools 3