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

Calculating dependencies ... done!
Dependency resolution took 1.55 s (backtrack: 0/20).

[ebuild     UD ] sys-apps/kmod-33::gentoo [34.2::gentoo] USE="lzma (tools) zlib zstd -debug -doc -pkcs7 -static-libs%" 503 KiB

Total: 1 package (1 downgrade), Size of downloads: 503 KiB