Max Christoff, on blog.chromium.org:
An additional across-the-board speed bump that makes Chrome 7% faster than current builds of Safari. Combined with recent graphics optimizations (namely, pass-through decoder and out-of-process rasterization), our tests have also shown Chrome’s graphics performance to be 15% faster than Safari. Overall, since launching Chrome on M1-based Macs in late 2020, Chrome is now 43% faster than it was just 17 months ago!
Hopefully this will arrive on Brave soon. Also, kinda of an explicit acceptance of how slow(ish) Chrome got two years ago.