I'm admin of an instance and wanted to make myself moderator of some communities, because admins can't change banners and icons in communities for some reason. Admins also can't make themselves mods of communities on their instance.
The workaround was create an account, use your main account to make that account a moderator, log back in to that account and then make your main account a moderator.
The options only show up if you make a post (or maybe a comment) in the community you want to moderate/leave.
It should be easier for you, though. If you visit the community you mod, there should be something at the top of the sidebar that says "Leave mod team". I wonder if it only gives you that option if there's more than one moderator. In that case, use the dummy account to be the stand in moderator, maybe?
I almost deleted my page trying to figure it out. But here’s what I’ve got for you.
Go to your page and write a comment. Then, from the desktop version, have another mod login and go to the 3 dots next to your comment. There they will see the option to remove you as a moderator
From Lemm.ee, on desktop, you have the option to leave the mod team. I don’t see the same option on Lemmy.world.
I've seen a screenshot, where I can click the three dots and several options appear, including "Remove as mod." I'm desktop only, and when I click the three dots, "Remove as mod" is never an option.
One of my co-mods sent an image of the top of our page, right above 'joined' and 'create a post', which offers 'leave mod team'. On my screen there's no such option.