I'm going to use the English language as an example of an LTR language and the Farsi/Persian/فارسی language as an example of an RTL language. When I say "This is how RTL works", what I actually mean is that this is how the Farsi language works. So, there may be some differences between RTL languages that I'm not familiar with.
I may provide a text demo and a screenshot demo. Be aware that the text demo is going to look different than the screenshot demo because GitHub doesn't properly support RTL:). So the screenshot version is the correct one.
There are over 600 million right-to-left (RTL) language speakers worldwide. I'm just letting everyone know that a lot of people are affected by not providing proper RTL support.