I have just added code which makes the instance vote weight visible in the UI - https://codeberg.org/rimu/pyfedi/commit/04b54e25f44f54420c247152323c90c4a3360a02

You can go to https://piefed.social/instances and check the vote weight of any instance. It’ll be very boring tho because they’re all set to “Votes are weighted at the normal level.” Yes, even lemmy.ml.