Opposite experience. For starters, Chromium doesn't even support video hardware decoding on Wayland properly.
It is for me and many others. Emacs works great under XWayland but Chromium HW video acceleration doesn't.
Emacs is a community project whereas Chromium has billions poured into it. Even Wine's getting Wayland support now and that ran under XWayland fine.
I don't think it's that unfair. Firefox on Linux is just better. Leaves some to be desired, sure, but a lot less than Chromium.