After updating on Qt 6.7.
Qt 6.6.3 works fine.
Part of the init log, see "GLError: 1286"

LOG TID(1) INFO      1.12232 drape_frontend/visual_params.cpp:52 Init(): Visual scale = 2 ; Tile size = 1024 ; Resources = xhdpi
LOG TID(3) INFO      1.12317 drape_frontend/backend_renderer.cpp:724 Do(): Start routine.
LOG TID(3) INFO      1.12318 drape_frontend/backend_renderer.cpp:692 OnContextCreate(): On context create.
LOG TID(4) INFO      1.12402 drape_frontend/frontend_renderer.cpp:2401 Do(): Start routine.
LOG TID(4) INFO      1.12412 drape_frontend/frontend_renderer.cpp:2318 OnContextCreate(): On context create.
LOG TID(3) INFO      1.12845 drape/support_manager.cpp:35 Init(): Renderer = Apple M1 Pro | Api = OpenGLES3 | Version = 4.1 Metal - 88
LOG TID(4) INFO      1.12847 drape/gl_functions.cpp:1150 CheckGLError(): SrcPoint  drape/gl_functions.cpp:442 glClear():  GLError: 1286
LOG TID(3) INFO      1.12847 drape/support_manager.cpp:79 Init(): Max line width = 1 | Max texture size = 16384
LOG TID(4) INFO      1.12855 shaders/program_manager.cpp:68 InitForOpenGL(): VTF enabled
LOG TID(3) INFO      1.12864 platform/platform.cpp:215 GetFontNames(): Available font files: [10: 00_NotoNaskhArabic-Regular.ttf 00_NotoSansThai-Regular.ttf 00_NotoSerifDevanagari-Regular.ttf 01_dejavusans.ttf 02_droidsans-fallback.ttf 03_jomolhari-id-a3d.ttf 04_padauk.ttf 05_khmeros.ttf 06_code2000.ttf 07_roboto_medium.ttf ]
LOG TID(4) INFO      1.13033 drape/gl_functions.cpp:1150 CheckGLError(): SrcPoint  drape/gl_functions.cpp:442 glClear():  GLError: 1286
LOG TID(4) INFO      1.13041 drape/gl_functions.cpp:1150 CheckGLError(): SrcPoint  drape/gl_functions.cpp:442 glClear():  GLError: 1286
LOG TID(3) DEBUG     1.18301 drape/texture_manager.cpp:463 Init(): Patterns texture size = 512 512
LOG TID(3) DEBUG     1.18396 drape/texture_manager.cpp:480 Init(): Colors texture size = 64 64

@Ferenc- @renderexpert Maybe you have any ideas.