>>35
usas el overlay de "guru", que sale en la guía de nheko ? si es así, está muy raro.
probé y no me pide qtwebengine. incluso activando todo (video, voip)
fijate en las use flags, podría no ser nheko, sino una de sus dependencias la que quiere meter qtwebengine
en muchas ocasiones tambien debes configurar las dependencias para que no se te llene de paquetes el sistema:

dependencias activando solo X:

[ebuild N ] dev-db/lmdb-0.9.29 USE="-static-libs" ABI_X86="(64) -32 (-x32)"
[ebuild N ~] dev-db/lmdb++-1.0.0-r1 USE="-test"
[ebuild N ] dev-qt/qtconcurrent-5.15.3 USE="-debug -test"
[ebuild N ] dev-cpp/nlohmann_json-3.10.5 USE="-test"
[ebuild N ] app-text/cmark-0.30.2 USE="-test"
[ebuild N ] dev-libs/libfmt-7.1.3 USE="-test" ABI_X86="(64) -32 (-x32)"
[ebuild N ~] dev-libs/olm-3.2.11 USE="-doc -test"
[ebuild N ] dev-libs/spdlog-1.8.2 USE="-test"
[ebuild R ] media-libs/gstreamer-1.18.6 USE="introspection*"
[ebuild N ] media-libs/graphene-1.10.6-r1 USE="introspection -doc -test" ABI_X86="(64) -32 (-x32)" CPU_FLAGS_X86="sse2"
[ebuild N ~] dev-cpp/coeurl-0.2.0 USE="-test"
[ebuild R ] media-libs/gst-plugins-base-1.18.6 USE="X* egl* introspection* opengl*"
[ebuild N ~] dev-libs/mtxclient-0.7.0 USE="-test"
[ebuild N ] media-libs/gst-plugins-bad-1.18.6 USE="X bzip2 egl gtk introspection nls opengl orc -gles2 -test -vnc -wayland" ABI_X86="(64) -32 (-x32)"
[ebuild N ] dev-libs/qtkeychain-0.13.2 USE="-gnome-keyring"
[ebuild N ~] dev-cpp/qt-jdenticon-0.2.1
[ebuild N ] dev-qt/qtimageformats-5.15.3 USE="mng -debug -test"
[ebuild N ] dev-qt/qtdeclarative-5.15.3-r1 USE="jit widgets -debug -gles2-only -localstorage -test -vulkan"
[ebuild N ] dev-qt/qtgraphicaleffects-5.15.3 USE="-debug -test"
[ebuild N ] dev-qt/qtquickcontrols2-5.15.3 USE="widgets -debug -test"
[ebuild N ] dev-qt/qtmultimedia-5.15.3 USE="alsa gstreamer pulseaudio qml widgets -debug -gles2-only -openal -test"
[ebuild N ~] net-im/nheko-0.9.3 USE="X -video -voip