There was an early “patch” around October '20, relatively early after release, following criticism from the “community” that was not satisfied with the look.
So they “improved” it!
Then it took a year or so to get it back to reasonable, yet mediocre. This Megathread gives some insight for those who don’t remember or weren’t around.
The changes later made with SU5 for performance reasons probably add to the situation.
Same pattern happened to Live weather one year later: great look and feel after release - “community” demanded more accuracy - SU7 turned it into a mess - now it’s back to reasonable yet mediocre after nearly 2 more years.
SU13 indicates that there will be no more major changes in MSFS2020, however it is worth to keep in mind that demands for improvements can be a double-edged sword.