Sugelary Mold Stain Cleaner, 5 fl oz Mold Stain Cleaner Gel for Washing Machine, Home Stain Cleaning Gel for Fridge, Tile, Grout, Sink and Bathroom Use

I use this: https://a.co/d/0gsuvwkX Works pretty good.

https://a.co/d/0fqXZYAQ

I saw this stuff recommended in a video: https://www.amazon.com/Remover-Household-Cleaner-Washing-Bathroom/dp/B08JQ6HNWM?th=1 I had the same issue you did and was skeptical, but it worked like a miracle.