Certainly, Windows 10 users who have updated to version 1903 have a strange problem: the download folder looks different. The files are now grouped by relative time; for example, files that were downloaded a week ago, a month ago, or at the beginning of the year.
Similarly, it applies to all files regardless of whether they were downloaded before or after the update. This is not exactly a mistake and it is easy to fix the design of this folder. Only if you know what things you should change.
Repair the design of the Downloads folder
First, open the Downloads folder and right click anywhere. From the context menu, go to “Group by” and click on “none”. This will remove the time-based grouping of this folder.
Similarly, the design of the folder will be seen again as before the 1903 update.
This "Group by" option is not new in Windows 10 1903. Since it has been part of Windows almost from the beginning. The only error here is that Windows 10 decided to enable it only for the download folder. Before that, the files in the folder had no classification, it is also possible that users never knew it existed.
It is also possible that you have seen the option “Group by” but you did not pay attention to it, since you never used it. Now, it can be grouped by more than just by time, and the other options in the sub menu may be useful.
You can see the options in the folders of your operating system
These same options are available for all folders, so the question arises: Why the Downloads folder?
One of the reasons is that this folder tends to be filled with many files. All applications capable of downloading files, store them there by default. Likewise, with so many files saved in the folder, and users do not always change the name of the file before saving it. Therefore, this grouping method is actually a good way to sort your downloaded files.
As well as, you may not remember what a file you downloaded was called, but you may have an idea of when you downloaded it. If it was a week or last month, the files will be grouped in that order and you will have a smaller subset of files to examine.
If you later realize that this type of grouping is very useful, or if you prefer to use it for different folders, the option is there. You just have to right click on a folder and select “Group by” and then on “Modification Date”.
While all this is easy to solve, it may not be a Windows 10 error. In turn, Microsoft might have thought this behavior would change after the update. And in which case, you don't need to make annoying changes like this.