Is there any further documentation on how Advanced date range selection is supposed to behave?

I have noticed that when selecting "From the beginning of 1 years in the past" to "To the end of Today" that get unexpected results. For example, I would expect to see a list of tickets generated in the past year, say from 'today' in 2021 to 'today' 2022. What I am seeing instead is a list of tickets From Jan 2021 to 'today' in 2022.

I've built a lot of reports using the example above and if the behavior that I've explained above is the intended behavior then I will have to work around this by using from "365 days in the past".

Is this intentional behavior or is this a bug?