Steam

Kinda needs to be default. I mean, I'm a privacy buff, and I don't care if you know my raw specs if I'm telling you how a game runs in a public forum. Because without the specs, that information is worthless.

Even if we anonymise the specs and just say "this user has a more powerful rig than you do," that tells me I can disregard their claim the game runs good. But if it says "this user has a less powerful rig than you do," I can take that review more seriously. And if I can hover over it and see exactly where my rig is better or worse comparatively, that matters too. I don't need to know what the specs are because we have benchmarks that place numerical values on performance based on different parts. So we can directly compare the performance of my M2 Pro (Mac mini) with 16GB RAM to, say, a 10th generation i7 with 32GB of RAM and a 1080. They win on RAM, I probably win on CPU (at least single core, they might have me on multi), and the GPU is kinda up in the air. On one hand, they have a dedicated graphics card. On the other, mine's way newer. So it's hard to guess. However, I could look it up on Geekbench and tell you exactly which part wins and by how much.