Rather than using toxic chemicals that fail to break down hard water and soap scum, one can use the following solution to easily clean the shower glass and flooring.
Supplies:

Organic Distilled White Vinegar (5$ as of July 2022) (Whole Foods)

Dawn Dish Soap Ultra Dishwashing Liquid, Dish Soap Refill (pack of 2) ($15 as of July 2022) (Amazon)

Mr. Clean Magic Eraser (10 count) ($10 as of July 2022) (Amazon)
<aside> ❗ CAUTION: When the shower floor is covered with dish soap solution, it becomes very slippery
</aside>
Instructions:
Sometimes the caulking in the shower has mold that cannot be removed with cleaning solutions. The proper solution is to completely replace the caulking.