It looks like qtquick3d property sheets have not been updated since 6.2. Some properties have been added to existing types and also new types have been added in 6.3 and 6.4, which should be included in property sheets. Here's results from grep:

git grep "since 6.3"
src/quick3d/qquick3dinstancing.cpp: \since 6.3
src/quick3d/qquick3dinstancing.cpp: \since 6.3
src/quick3d/qquick3dinstancing.cpp: \since 6.3
src/quick3d/qquick3dinstancing.cpp: \since 6.3
src/quick3d/qquick3dinstancing.cpp: \since 6.3
src/quick3d/qquick3dinstancing.cpp: \since 6.3
src/quick3d/qquick3dinstancing.cpp: \since 6.3
src/quick3dparticles/qquick3dparticlecustomshape.cpp: \since 6.3
src/quick3dparticles/qquick3dparticledynamicburst.cpp: \since 6.3
src/quick3dparticles/qquick3dparticlespriteparticle.cpp: \since 6.3
src/quick3dparticles/qquick3dparticlespriteparticle.cpp: \since 6.3
src/quick3dparticles/qquick3dparticlespriteparticle.cpp: \since 6.3
src/quick3dparticles/qquick3dparticlesystemlogging.cpp: \since 6.3

git grep "since 6.4"
src/helpers/heightfieldgeometry.cpp: \since 6.4
src/helpers/instancerepeater.cpp: \since 6.4
src/helpers/instancerepeater.cpp: \since 6.4
src/helpers/lookatnode.cpp: \since 6.4
src/quick3d/qquick3dbakedlightmap.cpp: \since 6.4
src/quick3d/qquick3dlightmapper.cpp: \since 6.4
src/quick3d/qquick3dmodel.cpp: \since 6.4
src/quick3d/qquick3dreflectionprobe.cpp: \since 6.4
src/quick3d/qquick3dsceneenvironment.cpp: \since 6.4
src/quick3d/qquick3dsceneenvironment.cpp: \since 6.4
src/quick3d/qquick3dsceneenvironment.cpp: \since 6.4
src/quick3d/qquick3dviewport.cpp: \since 6.4
src/quick3dparticles/qquick3dparticlelineparticle.cpp: \since 6.4
src/quick3dparticles/qquick3dparticlerepeller.cpp: \since 6.4
src/quick3dparticles/qquick3dparticlescaleaffector.cpp: \since 6.4
src/quick3dparticles/qquick3dparticlespriteparticle.cpp: \since 6.4