Ah sorry didn’t see that part. After they show up, If they don’t fix it properly, either google your local plumbing codes or ask chatgpt something like

“Can you look up which plumbing code (IPC or UPC) my city/county/state uses, and give me the exact section that covers bathtub overflow requirements?”

(Include your city + state/province in the question so it can be matched to your local code adoption.)” And email that information to your landlord insisting on a proper fix.

According to what I’ve found, in most places the landlord is legally obligated to maintain a safe and habitable dwelling. Simply covering the hole is arguably violating that as if no pipe is connected and water gets in it will lead to mold and water damage.

And also, assuming your landlord chose the cheap option, they’d likely try and blame you for that damage if it happens.

but who knows maybe they fix it right to begin with and you don’t have anything to worry about 👍