MSI Ventus 3080 only?
Yes and no. Yes because this is designed to hug the Ventus' heatsink as snugly as possible, so unless other cards are of the exact same height post de-shroud, this would either be too tall / short. On the other hand, the ventus 3080, 3080Ti & 3090 from MSI all shares the same cooler so technically this also supports the Ventus 3080Ti & the 3090.
Fan compatibility?
The fan shrouds should be compatible with most 120mm case fans as long as they use the same mounting pattern & is 25mm in height. If you have a Noctua NF Series (NF-A/S/F12) fan or an Arctic P12, I've made special versions of this mod for those fans that fits & looks better!
Have the shrouds been printed / tested?
Not this particular model, however I've printed the Noctua & Arctic versions which have exactly the same mounting pattern & dimensions so this should work as well.
Fan model used in rendering by Anton Tsaritsynskyy
Heatsink model used in rendering by HDRI (Adapted)
The author hasn't provided the model origin yet.