SatStackingBadger on Nostr: I have found bleach works well, but it needs time to work. You can get thicker, ...

I have found bleach works well, but it needs time to work. You can get thicker, clingier stuff for toilets.
You can use also use paper towels to help hold the bleach in place too. That works well in the corners.

Don't use vinegar or acid based grout cleaners with bleach, or you will gas yourself out with chlorine. Wear old clothes and gloves too.