Well, to me it seems the cloud flicker is a compatibility issue - is a compatibility issue a bug? Not sure.
Probably Asobo decided not to bother checking their updates compatibility with older GPU’s, to save work.
I am still of the opinion though that it is very bad practice to stealth nerf older GPU’s in this way.
Especially if these GPUs are listed as ok for “minimum system requirements”.
The argument that these specs change over time is totally valid in my eyes, BUT it has only been a little over 2 months since MSFS has been released. So it seems very inconsiderate to withdraw compatibility with some hardware after such a short time.
Edit - For those that agree, you can vote here: