How does staggered file versioning work in Syncthing (Staggered File Versioning)?

Question

Data synchronization

I can't figure out how syncthing's staggered file versioning works (Staggered File Versioning)
The documentation says the following (Google auto-translate): The
following intervals are used, and each has a maximum number of files that will be stored for each.
1 hour
During the first hour, the latest version is saved every 30 seconds.
Day 1
On the first day, the latest version every hour.
30 days
For the first 30 days, the latest version is kept every day.
Up to maximum age
Up to maximum age, the latest version is kept every week.
Max Age
The maximum time to save a version in days.
For example, to keep replaced or deleted files in the ".stversions" folder for a whole year, use 365.
If only for 10 days, use 10.
Note. Set to 0 to keep versions forever.
The following intervals are used and they each have a maximum number of files that will be kept for each.
1 Hour
For the first hour, the most recent version is kept every 30 seconds.
1 Day
For the first day, the most recent version is kept every hour.
30 Days
For the first 30 days, the most recent version is kept every day.
Until Maximum Age
Until maximum age, the most recent version is kept every week.