Happy chimera user here. It feels fast in regular usage though I use ssh much more than desktop.

What’s actually amazing about chimera is the musl + clang/llvm/compiler-rt combination. It allows you to do all kinds of amazing things easily from a programming perspective.

The apk 3 package manager, build system (cbuild) is also excellent. Everything feels modern and clean. Package availability is still limited and you would probably need to compile many of your favourite packages from source but I would still highly recommend this distribution.