as far as I can see `fish_add_path` is still called from data/env/snapd.fish on master (see https://github.com/snapcore/snapd/blob/master/data/env/snapd.fish.in#L3 for reference) and the mentioned bug and corresponding PR/fix only affect the setting of XDG_DATA_DIRS and not the invalid call to this non-existent function on fish <3.2
as far as I can see `fish_add_path` is still called from data/env/snapd.fish on master (see https:/ /github. com/snapcore/ snapd/blob/ master/ data/env/ snapd.fish. in#L3 for reference) and the mentioned bug and corresponding PR/fix only affect the setting of XDG_DATA_DIRS and not the invalid call to this non-existent function on fish <3.2