Zoom level in Media Browser is not remembered/saved between restarts
The zoom level in the Media Browser resets to its smallest value every time that Kdenlive is closed and opened.
It's only a small irritation, but also one that should be fairly straight forward to fix. To deal with footage that is quite large, it makes sense to really look at which footage to bring into Kdenlive, and the media browser is great for that. Also, on high resolution screens the smallest zoom level shows icons that are so small that you cannot see which video they point to.
It would make sense to keep track of the zoom level used in the Media Browser and just use the last value that was used, as the user would typically set a value that they are comfortable with.