Textsize different for axis title and axis label

Textsize is different even for both label and ticks the same font and size is the same

Release build 2.9.0-57-g374093ca7
May 16 2022, 04:35:11
System: Windows 10 Version 2009
Locale: German,Germany (Decimal point ',', Group separator '.')
Number settings: Decimal point '.', Group separator ',', Exponential 'e', Zero digit '0', Percent '%', Positive/Negative sign '+'/'-' (Updated on restart)
Architecture: x86_64-little_endian-llp64
Kernel: winnt 10.0.19043
C++ Compiler: MSVC 19.29.30038.1
C++ Compiler Flags: /DWIN32 /D_WINDOWS /W3 /GR /EHsc /wd4250 /wd4251 /wd4396 /wd4661 /Zc:__cplusplus -O2 -W3 -DPSAPI_VERSION=1