Selecting a component in eeschema will select the corresponding component in pcbnew which in turn highlights it in the 3D viewer.
Scenario with two monitors:
1 for main focus (eeschema or pcbnew)
2 3D viewer
With pcbnew in main focus selection/deselection and 3D viewer response functions as intended.
With eechema in main focus selection highlights in 3D view, however, deselect does not clear the high lit component in the 3D viewer since it is still selected in pcbnew!
Minor issue, though can be annoying.
Side note: component high light state only changes when cursor moves into or out of 3D viewer screen.
Application: KiCad Schematic Editor x86_64 on x86_64
Version: (6.99.0-5697-g8c9859f186), release build
libcurl/7.81.0 GnuTLS/3.7.3 zlib/1.2.11 brotli/1.0.9 zstd/1.4.8 libidn2/2.3.2 libpsl/0.21.0 (+libidn2/2.3.2) libssh/0.9.6/openssl/zlib nghttp2/1.43.0 librtmp/2.3 OpenLDAP/2.5.13
Platform: Ubuntu 22.04.1 LTS, 64 bit, Little endian, wxGTK, xubuntu, x11
Date: Jan 21 2023 09:22:50
wxWidgets: 3.2.1 (wchar_t,wx containers) GTK+ 3.24
Compiler: GCC 12.1.0 with C++ ABI 1017