I think most people who seriously use Yosys already know that ABC is the foundation it’s built on. But let’s be real, this plugin is just twelve C++ source files. Calling that a “synthesis suite” just isn’t accurate. What it actually does is build on the synthesis suite provided by Yosys (and indirectly ABC), adding some extra algorithms and support for your FPGA family.

That said, this work is important, you do need it to get your FPGA running. And from the table, the reported optimizations look good (though I haven’t dug into them in detail). Still, describing it as “a synthesis suite” when it’s really “a plugin that adds FPGA support and a few optimizations to Yosys” does indeed leave me with a bad taste in my mouth.

Of course, you don’t have to agree with me. It’s clear from other comments that not everyone does, and that’s totally fine.

FWIW, I was not confused and don't believe you need to clarify.

It was never about being confused.