These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.07 s (backtrack: 0/20).

[ebuild  N     ] dev-cpp/abseil-cpp-20250814.1:0/2508.1.0::gentoo  USE="-debug -test -test-helpers" 2184 KiB
[ebuild  N     ] dev-libs/re2-2025.08.12:0/11::gentoo  USE="-icu -test" 389 KiB
[ebuild  N     ] dev-libs/protobuf-33.4:0/33.4.0::gentoo  USE="libprotoc (libupb) protobuf protoc zlib -conformance -debug -emacs -examples -test" 6726 KiB
[ebuild  N     ] net-libs/grpc-1.72.0:0/47.172::gentoo  USE="-doc -examples (-systemd) -test" 14386 KiB

Total: 4 packages (4 new), Size of downloads: 23683 KiB